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 [Search a list of Patent Appplications for class PLT]   CLASS PLT,PLANTS
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SECTION I - CLASS DEFINITION

This is the class for plants which are patentable under Title 35 U.S. Code, Section 161, which provides for the granting of a patent to whoever invents or discovers and asexually reproduces any distinct and new variety of plant, including cultivated sports, mutants, hybrids, and newly found seedlings other than a tuber propagated plant or a plant found in an uncultivated state.

SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS

II. LINES WITH OTHER CLASSES AND WITHIN THIS CLASS

In order to be properly classified, a patent or publication is placed in the first appearing of a series of coordinate subclasses which includes the subject matter of the patent or publication. Thus, a patent describing a plant which is both a conifer and a shrub is classified as a conifer rather than a shrub. A patent not fitting the description of any of the first line subclasses is classified in miscellaneous subclasses elsewhere. (See Subclass References to the Current Class, below.)

A subclass which is positioned one indent to the left of one or more following subclasses is considered to be the residual (miscellaneous) subclass for that group of subclasses. Thus, the subclass titled Shrubs or vines, includes those shrubs or vines which are not azaleas or rhododendrons, barberries, buddleias, etc., while the subclass titled Camellia, includes those camellias which are neither pink nor red. (See Subclass References to the Current Class, below.)

Subclasses in this class have been created based on the commercial or market class in which the plants are normally found. For example, though a tomato is botanically a fruit, it is sold as a vegetable, therefore making classification proper for the vegetable area rather than the fruit area. Though some varieties of philodendron may grow as a vine, it is normally sold with the ornamental foliage plants and therefore is classified in that area rather than with the vines and shrubs. (See Subclass References to the Current Class, below.)

If a plant is noted for its flowers and its foliage, it will normally be classified with the ornamental flowering plants since those subclasses appear in the schedule prior to the ornamental foliage subclasses. Whether a plant is noted for its foliage or its flowers may sometimes be a subjective decision. When in doubt, look at the subclass definitions for guidance.

The color definitions given herein are substantially those found in Webster"s New International Dictionary, Second Edition, Unabridged, published by G.C. Merriam Co., Springfield, MA. Each color definition refers to one or more plant patents so that the blossoms of the plant patents themselves comprise a kind of color chart to illustrate the words of the definitions. The color designations apply to the color of the blossom when it is newly open and in an unfaded condition, i.e., not in bud or in full bloom. The color designation in the patent specification is the color used to determine placement of patents.

The effects of light and shadow should be discounted when determining the true color of a blossom for purposes of classification. Also, the color at the base of the petal should be disregarded except where a two-tone or bicolor effect is quite obvious.

All the color designations refer to solid colors unless clearly indicated otherwise. Thus, considering the group of climbing roses, a striped or bicolor rose would not be proper for any of the indented subclasses but would be placed in the miscellaneous subclass for climbing roses. In determining whether or not a blossom has a solid color, the appearance of the flower as a whole is the proper criterion. Minor flecks and gradations of color should be disregarded. However, both faces of all petals must be substantially the same color. (See References to the Current Class, below.)

SECTION III - SUBCLASS REFERENCES TO THE CURRENT CLASS

SEE OR SEARCH THIS CLASS, SUBCLASS:

109,for climbing roses.
156+,for fruit.
213,for a plant classified as a conifer.
226,for a plant classified as a shrub.
226,for shrubs or vines which are not azaleas or rhodendrons, barberries, buddleias, etc.
243,for camellias which are neither pink nor red.
258,for vegetable.
373+,for ornamental foliage plants.
395,for miscellaneous.

SECTION IV - REFERENCES TO OTHER CLASSES

SEE OR SEARCH CLASS:

800Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes,   subclasses 295+ for living multicellular plants and separated or severed parts thereof that have not undergone any modification or treatment subsequent to their separation (e.g., untreated seeds, etc.).

SUBCLASSES

[List of Patents for class PLT subclass 101]    101ROSE:
 This subclass is indented under the class definition.  Plant which is a member of the genus Rosa and not otherwise provided for.
  
[List of Patents for class PLT subclass 102]    102Shrub:
 This subclass is indented under subclass 101.  Rose plant which is characterized as highly basally dominant, forming a profusion of upwardly extending canes, resulting in a dense, mounded, shrub-like specimen plant as typified by U.S. plant patent Nos. 9715, 9191, and 8680.
(1) Note. This plant may also be characterized by short to medium length flowering stems, superior cold hardiness and disease resistance, coarseness of the blooms and/or plant, and abundant foliage. Shrub-like plants with highly quartered blooms are also included in this subclass.
  
[List of Patents for class PLT subclass 103]    103White:
 This subclass is indented under subclass 102.  Shrub rose characterized by blossoms which are white (a color comparable to fresh snow; a neutral or achromatic color of highest brilliance; the lightest gray) as typified by U.S. plant patent Nos. 9650, 9374, and 8871.
  
[List of Patents for class PLT subclass 104]    104Yellow:
 This subclass is indented under subclass 102.  Shrub rose characterized by blossoms which are yellow (a color which resembles the hue of ripe lemons or the color of sulfur) as typified by U.S. plant patent Nos. 9007, 8668, and 8682.
  
[List of Patents for class PLT subclass 105]    105Orange:
 This subclass is indented under subclass 102.  Shrub rose characterized by blossoms which are orange (a color varying from reddish red-yellow to red-yellow, in saturation from high to very high, and in brilliance from medium to high), as typified by U.S. plant patent Nos. 9705, 9527, and 9524.
  
[List of Patents for class PLT subclass 106]    106Salmon:
 This subclass is indented under subclass 102.  Shrub rose characterized by blossoms which are salmon (a color which is reddish red-yellow, of medium saturation and high brilliance), as typified by U.S. plant patent No. 7312.
  
[List of Patents for class PLT subclass 107]    107Pink:
 This subclass is indented under subclass 102.  Shrub rose characterized by blossoms which are pink (a color varying from reddish blue-red to yellowish red, from low to medium saturation and from high to very high brilliance), as typified by U.S. plant patent Nos. 9680, 9641, and 9526.
  
[List of Patents for class PLT subclass 108]    108Red:
 This subclass is indented under subclass 102.  Shrub rose characterized by blossoms which are red (a color ranging from that of blood to that of a ruby), as typified by U.S. plant patent Nos. 9649, 9537, and 9554.
  
[List of Patents for class PLT subclass 109]    109Climber:
 This subclass is indented under subclass 101.  Rose plant characterized by vigorous, long, erect or lax canes suitable for training on trellises or fences, as typified by U.S. plant patent Nos. 8019, 6892, and 5049.
(1) Note. "Pillar" and "Rambler" roses are proper for this and indented subclasses.
  
[List of Patents for class PLT subclass 110]    110White:
 This subclass is indented under subclass 109.  Climbing rose characterized by blossoms which are white (a color comparable to fresh snow; a neutral or achromatic color of highest brilliance; the lightest gray), as typified by U.S. plant patent Nos. 8689, 6706, and 2284.
  
[List of Patents for class PLT subclass 111]    111Yellow:
 This subclass is indented under subclass 109.  Climbing rose characterized by blossoms which are yellow (a color which resembles the hue of ripe lemons or the color of sulphur), as typified by U.S. plant patent Nos. 9012, 8411, and 6509.
  
[List of Patents for class PLT subclass 112]    112Orange:
 This subclass is indented under subclass 109.  Climbing rose characterized by blossoms which are orange (a color varying from reddish red-yellow to red-yellow, in saturation from high to very high, and in brilliance from medium to high), as typified by U.S. plant patent Nos. 9356, 9233, and 9013.
  
[List of Patents for class PLT subclass 113]    113Salmon:
 This subclass is indented under subclass 109.  Climbing rose characterized by blossoms which are salmon (a color which is reddish red-yellow, of medium saturation and high brilliance) as typified by U.S. plant patent Nos. 7617, 6596, and 1606.
  
[List of Patents for class PLT subclass 114]    114Pink:
 This subclass is indented under subclass 109.  Climbing rose characterized by blossoms which are pink (a color varying from reddish blue-red to yellowish red, from low to medium saturation, and from high to very high brilliance), as typified by U.S. plant patent Nos. 9612, 9492, and 7196.
  
[List of Patents for class PLT subclass 115]    115Red:
 This subclass is indented under subclass 109.  Climbing rose characterized by blossoms which are red (a color ranging from that of blood to that of a ruby), as typified by U.S. plant patent Nos. 8741, 6817, and 4910.
  
[List of Patents for class PLT subclass 116]    116Miniature:
 This subclass is indented under subclass 101.  Rose plant which is characterized primarily by short stature (ranging in height from a few inches to approximately 20 inches), petite foliage, and blossoms of a diameter which is generally 1.5 inches or less, as typified by U.S. plant patent Nos. 9749, 9734, and 9033.
  
[List of Patents for class PLT subclass 117]    117White:
 This subclass is indented under subclass 116.  Miniature rose characterized by blossoms which are white (a color comparable to fresh snow; a neutral or achromatic color of highest brilliance; the lightest gray), as typified by U.S. plant patent Nos. 9280, 9279, and 9016.
  
[List of Patents for class PLT subclass 118]    118Yellow:
 This subclass is indented under subclass 116.  Miniature rose characterized by blossoms which are yellow (a color which resembles the hue of ripe lemons or the color of sulphur), as typified by U.S. plant patent Nos. 9414, 9401, and 9159.
  
[List of Patents for class PLT subclass 119]    119Orange:
 This subclass is indented under subclass 116.  Miniature rose characterized by blossoms which are orange (a color varying from reddish red-yellow to red-yellow, in saturation from high to very high, and in brilliance from medium to high), as typified by U.S. plant patent Nos. 9656, 7606, and 7558.
  
[List of Patents for class PLT subclass 120]    120Salmon:
 This subclass is indented under subclass 116.  Miniature rose characterized by blossoms which are salmon (a color which is reddish red-yellow, of medium saturation and high brilliance) as typified by U.S. plant patent Nos. 9018, 8515, and 7032.
  
[List of Patents for class PLT subclass 121]    121Pink:
 This subclass is indented under subclass 116.  Miniature rose characterized by blossoms which are pink (a color varying from reddish blue-red to yellowish red, from low to medium saturation, and from high to very high brilliance), as typified by U.S. plant patent Nos. 9735, 9717, and 9651.
  
[List of Patents for class PLT subclass 122]    122Red:
 This subclass is indented under subclass 116.  Miniature rose characterized by blossoms which are red (a color ranging from that of blood to that of a ruby), as typified by U.S. plant patent Nos. 9528, 9483, and 9090.
  
[List of Patents for class PLT subclass 123]    123Super-miniature:
 This subclass is indented under subclass 101.  Rose plant which is primarily characterized as being greater in height, stature, foliage size, and bloom size than miniatures, but still lesser than floribundas, as typified by U.S. plant patent Nos. 9821, 9798, and 9786.
(1) Note. Typical height ranges would be from greater than 18 inches to 30 inches plus, with bloom diameters characterized as greater than 1.5 inches, usually in the range of 2 to 2.5 inches.
  
[List of Patents for class PLT subclass 124]    124White:
 This subclass is indented under subclass 123.  Super-miniature rose characterized by blossoms which are white (a color comparable to fresh snow; a neutral or achromatic color of highest brilliance; the lightest gray), as typified by U.S. plant patent Nos. 8899, 8850, and 5557.
  
[List of Patents for class PLT subclass 125]    125Yellow:
 This subclass is indented under subclass 123.  Super-miniature rose characterized by blossoms which are yellow (a color which resembles the hue of ripe lemons or the color of sulfur), as typified by U.S. plant patent Nos. 6560, 5690, and 5427.
  
[List of Patents for class PLT subclass 126]    126Orange:
 This subclass is indented under subclass 123.  Super-miniature rose characterized by blossoms which are orange (a color varying from reddish red-yellow to red-yellow, in saturation from high to very high, and in brilliance from medium to high), as typified by U.S. plant patent Nos. 9420, 8578, and 5246.
  
[List of Patents for class PLT subclass 127]    127Salmon:
 This subclass is indented under subclass 123.  Super-miniature rose characterized by blossoms which are salmon (a color which is reddish red-yellow, of medium saturation and high brilliance), as typified by U.S. plant patent Nos. 8554, 7188, and 5118.
  
[List of Patents for class PLT subclass 128]    128Pink:
 This subclass is indented under subclass 123.  Super-miniature rose characterized by blossoms which are pink (a color varying from reddish blue-red to yellowish red, from low to medium saturation, and from high to very high brilliance), as typified by U.S. plant patent Nos. 9790, 6139, and 6132.
  
[List of Patents for class PLT subclass 129]    129Red:
 This subclass is indented under subclass 123.  Super-miniature rose characterized by blossoms which are red (a color ranging from that of blood to that of a ruby), as typified by U.S. plant patent Nos. 9160, 9063, and 8555.
  
[List of Patents for class PLT subclass 130]    130Grandiflora or hybrid tea:
 This subclass is indented under subclass 101.  Rose plant characterized as free flowering with large, well-shaped blooms borne singly or in small clusters on long stems, as typified by U.S. plant patent Nos. 9806, 9805, and 9706.
  
[List of Patents for class PLT subclass 131]    131Red bicolor:
 This subclass is indented under subclass 130.  Grandiflora or hybrid tea rose characterized by blooms in which either the reverse or face side of the petal is red (a color ranging from that of blood to that of a ruby) and the other side of the petal is a different color, as typified by U.S. plant patent Nos. 9376, 9064, and 9052.
  
[List of Patents for class PLT subclass 132]    132Mottled, multiple, or striped colors:
 This subclass is indented under subclass 130.  Grandiflora or hybrid tea rose characterized by blooms exhibiting a splashing, striping, speckling, or dotting of two or more distinct colors, as typified by U.S. plant patent Nos. 9574, 9037, 8590, and 3623.
  
[List of Patents for class PLT subclass 133]    133White:
 This subclass is indented under subclass 130.  Grandiflora or hybrid tea rose characterized by blooms which are white (a color comparable to fresh snow; a neutral or achromatic color of highest brilliance; the lightest gray), as typified by U.S. plant patent Nos. 9833, 9402, and 9328.
  
[List of Patents for class PLT subclass 134]    134Yellow:
 This subclass is indented under subclass 130.  Grandiflora or hybrid tea rose characterized by blooms which are yellow (a color which resembles the hue of ripe lemons or the color of sulphur), as typified by U.S. plant patent Nos. 9719, 9608, and 9591.
  
[List of Patents for class PLT subclass 135]    135Orange:
 This subclass is indented under subclass 130.  Grandiflora or hybrid tea rose characterized by blooms which are orange (a color varying from reddish red-yellow to red-yellow, in saturation from high to very high, and in brilliance from medium to high), as typified by U.S. plant patent Nos. 9609, 9170, and 9116.
  
[List of Patents for class PLT subclass 136]    136Salmon:
 This subclass is indented under subclass 130.  Grandiflora or hybrid tea rose characterized by blooms which are salmon (a color which is reddish red-yellow, of medium saturation and high brilliance), as typified by U.S. plant patent Nos. 9330, 9043, 8629.
  
[List of Patents for class PLT subclass 137]    137Light to medium pink:
 This subclass is indented under subclass 130.  Grandiflora or hybrid tea rose characterized by blooms which range from a light to a medium shade of pink (a color varying from reddish blue-red to yellowish red, from low to medium saturation, and from high to very high brilliance), as typified by U.S. plant patent Nos. 9808, 9807, and 9289.
  
[List of Patents for class PLT subclass 138]    138Dark pink:
 This subclass is indented under subclass 130.  Grandiflora or hybrid tea rose characterized by blooms which are a dark shade of pink (a color varying from reddish blue-red to yellowish red, from low to medium saturation, and from high to very high brilliance), as typified by U.S. plant patent Nos. 9564, 9403, and 8632.
  
[List of Patents for class PLT subclass 139]    139Light to medium red:
 This subclass is indented under subclass 130.  Grandiflora or hybrid tea rose characterized by blooms which range from a light to medium shade of red (a color ranging from that of blood to that of a ruby), as typified by U.S. plant patent Nos. 9862, 9736, and 9636.
  
[List of Patents for class PLT subclass 140]    140`Dark red:
 This subclass is indented under subclass 130.  Grandiflora or hybrid tea rose characterized by blooms which are a dark shade of red (a color ranging from that of blood to that of a ruby), as typified by U.S. plant patent Nos. 9974, 9915, and 8754.
  
[List of Patents for class PLT subclass 141]    141Floribunda or polyantha:
 This subclass is indented under subclass 101.  Rose plant characterized as very free flowering with blooms borne in clusters as typified by U.S. plant patent Nos. 9600, 9171, and 9161.
(1) Note. Floribundas are generally of lesser stature than hybrid teas or grandifloras, and polyanthas are generally smaller than floribundas, in bloom size as well as stature.
  
[List of Patents for class PLT subclass 142]    142Red bicolor:
 This subclass is indented under subclass 141.  Floribunda or polyantha rose characterized by blooms in which either the reverse or face side of the petal is red (a color ranging from that of blood to that of a ruby) and the other side of the petal is a different color, as typified by U.S. plant patent Nos. 9405, 8579, and 7139.
  
[List of Patents for class PLT subclass 143]    143Mottled, multiple, or striped colors:
 This subclass is indented under subclass 141.  Floribunda or polyantha rose characterized by blooms exhibiting a splashing, striping, speckling or dotting of two or more distinct colors, as typified by U.S. plant patent Nos. 9592, 6255, and 5399.
  
[List of Patents for class PLT subclass 144]    144White:
 This subclass is indented under subclass 141.  Floribunda or polyantha rose characterized by blooms which are white (a color comparable to fresh snow; a neutral or achromatic color of highest brilliance; the lightest gray), as typified by U.S. plant patent Nos. 9720, 9629, 8580.
  
[List of Patents for class PLT subclass 145]    145Yellow:
 This subclass is indented under subclass 141.  Floribunda or polyantha rose characterized by blooms which are yellow (a color which resembles the hue of ripe lemons or the color of sulphur), as typified by U.S. plant patent Nos. 9657, 9512, and 8946.
  
[List of Patents for class PLT subclass 146]    146Orange:
 This subclass is indented under subclass 141.  Floribunda or polyantha rose characterized by blooms which are orange (a color varying from reddish red-yellow to red-yellow, in saturation from high to very high, and in brilliance from medium to high), as typified by U.S. plant patent Nos. 9711, 8900, and 5428.
  
[List of Patents for class PLT subclass 147]    147Salmon:
 This subclass is indented under subclass 141.  Floribunda or polyantha rose characterized by blooms which are salmon (a color which is reddish red-yellow, of medium saturation and high brilliance), as typified by U.S. plant patent Nos. 9721, 6165, and 5764.
  
[List of Patents for class PLT subclass 148]    148Light to medium pink:
 This subclass is indented under subclass 141.  Floribunda or polyantha rose characterized by blooms which range from a light to a medium shade of pink (a color varying from reddish blue-red to yellowish red, from low to medium saturation and from high to very high brilliance), as typified by U.S. plant patent Nos. 9722, 9613, and 9101.
  
[List of Patents for class PLT subclass 149]    149Dark pink:
 This subclass is indented under subclass 141.  Floribunda or polyantha rose characterized by blooms which are a dark shade of pink (a color varying from reddish blue-red to yellowish red, from low to medium saturation and from high to very high brilliance), as typified by U.S. plant patent Nos. 9689, 9567, and 8183.
  
[List of Patents for class PLT subclass 150]    150Light to medium red:
 This subclass is indented under subclass 141.  Floribunda or polyantha rose characterized by blooms which range from a light to a medium shade of red (a color ranging from that of blood to that of a ruby), as typified by U.S. plant patent Nos. 9032, 8743, and 8634.
  
[List of Patents for class PLT subclass 151]    151Dark red:
 This subclass is indented under subclass 141.  Floribunda or polyantha rose characterized by blooms which are a dark shade of red (a color ranging from that of blood to that of a ruby), as typified by U.S. plant patent Nos. 8025, 7996, and 7157.
  
[List of Patents for class PLT subclass 152]    152NUT (INCLUDING ORNAMENTAL VARIETY):
 This subclass is indented under the class definition.  Plant which (a) bears edible hard-shelled dry fruit having a more or less distinct hull or (b) is an "ornamental" variety which may bear no fruit at all and is characterized by attractive foliage or blossoms.
  
[List of Patents for class PLT subclass 153]    153Pecan:
 This subclass is indented under subclass 152.  Nut plant which belongs to the genus Carya and species illinoinensis.
  
[List of Patents for class PLT subclass 154]    154Walnut:
 This subclass is indented under subclass 152.  Nut plant which belongs to the genus Juglans.
  
[List of Patents for class PLT subclass 155]    155Almond:
 This subclass is indented under subclass 152.  Nut plant which belongs to the genus Prunus and species amygdalus.
  
[List of Patents for class PLT subclass 156]    156FRUIT (INCLUDING ORNAMENTAL VARIETY):
 This subclass is indented under the class definition.  Plant which (a) bears edible and fleshy fruit or (b) is an "ornamental" variety of fruiting species which may bear no fruit at all and is characterized by attractive foliage or blossoms.
(1) Note. Interspecific hybrids are classified in the subclass which includes both or all plants involved in the interspecific cross. For example, a lemon X lime hybrid would be placed in the citrus subclass and a plum X apricot hybrid would be placed in the stone fruit subclass.
  
[List of Patents for class PLT subclass 157]    157Blueberry:
 This subclass is indented under subclass 156.  Fruit plant which belongs to the genus Vaccinium.
  
[List of Patents for class PLT subclass 158]    158Olive:
 This subclass is indented under subclass 156.  Fruit plant which belongs to the genus Olea.
  
[List of Patents for class PLT subclass 159]    159Mango:
 This subclass is indented under subclass 156.  Fruit plant which belongs to the genus Mangifera.
  
[List of Patents for class PLT subclass 160]    160Plantain or banana:
 This subclass is indented under subclass 156.  Fruit plant which belongs to the genus Musa.
  
[List of Patents for class PLT subclass 161]    161Apple:
 This subclass is indented under subclass 156.  Fruit plant which belongs to the genus Malus.
  
[List of Patents for class PLT subclass 162]    162Sport of "Gala":
 This subclass is indented under subclass 161.  Apple plant which is a sport derived from the tree Gala.
  
[List of Patents for class PLT subclass 163]    163Sport of "Jonagold":
 This subclass is indented under subclass 161.  Apple plant which is a sport derived from the tree Jonagold.
  
[List of Patents for class PLT subclass 164]    164Sport of "Rome":
 This subclass is indented under subclass 161.  Apple plant which is a sport derived from the tree Rome.
  
[List of Patents for class PLT subclass 165]    165Sport of "MacIntosh":
 This subclass is indented under subclass 161.  Apple plant which is a sport derived from the tree MacIntosh.
  
[List of Patents for class PLT subclass 166]    166Sport of "Jonathan :
 This subclass is indented under subclass 161.  Apple plant which is a sport derived from the tree Jonathan.
  
[List of Patents for class PLT subclass 167]    167Sport of "Winesap":
 This subclass is indented under subclass 161.  Apple plant which is a sport derived from the tree Winesap.
  
[List of Patents for class PLT subclass 168]    168Sport of "Fuji":
 This subclass is indented under subclass 161.  Apple plant which is a sport derived from the tree Fuji.
  
[List of Patents for class PLT subclass 169]    169Sport of "Cortland":
 This subclass is indented under subclass 161.  Apple plant which is a sport derived from the tree Cortland.
  
[List of Patents for class PLT subclass 170]    170Sport of "Empire":
 This subclass is indented under subclass 161.  Apple plant which is a sport derived from the tree Empire .
  
[List of Patents for class PLT subclass 171]    171Sport of "Red Delicious":
 This subclass is indented under subclass 161.  Apple plant which is a sport derived from the tree Red Delicious.
  
[List of Patents for class PLT subclass 172]    172Green or yellow fruited variety:
 This subclass is indented under subclass 161.  Apple plant which bears fruit of yellow or green predominant coloration.
  
[List of Patents for class PLT subclass 173]    173Crabapple:
 This subclass is indented under subclass 161.  Apple plant which is particularly noted for its ornamental shape, ultimate size, ornamental flowering habit, or any combination of such characteristics, and which would be marketed as or labelled, in the market place, with the generic identifier "crabapple".
(1) Note. Fruit of the crabapple is of reduced size, has mealy flesh, and is not normally marketable.
  
[List of Patents for class PLT subclass 174]    174Rootstock:
 This subclass is indented under subclass 161.  Apple plant which is derived from breeding programs or discoveries and has primary utility for use as a rootstock.
  
[List of Patents for class PLT subclass 175]    175Columnar habit:
 This subclass is indented under subclass 161.  Apple plant which essentially bears fruit on or on short spurs off an essentially nonbranching main vertical stem.
  
[List of Patents for class PLT subclass 176]    176Pear:
 This subclass is indented under subclass 156.  Plant which belongs to the genus Pyrus.
  
[List of Patents for class PLT subclass 177]    177Ornamental:
 This subclass is indented under subclass 176.  Pear plant which does not produce marketable fruit and which has attributes of desirable shape, canopy density, growth habit, fall coloration, etc., and is marketed as an ornamental tree.
  
[List of Patents for class PLT subclass 178]    178Asian:
 This subclass is indented under subclass 176.  Pear plant which produces fruit which is marketed within the market class Asian pear and which belongs to any of the species of Asian pears.
  
[List of Patents for class PLT subclass 179]    179Rootstock:
 This subclass is indented under subclass 176.  Pear plant which is derived from breeding programs or discoveries and has primary utility for use as a rootstock.
  
[List of Patents for class PLT subclass 180]    180Stone fruit tree:
 This subclass is indented under subclass 156.  Fruit plant which belongs to the genus Prunus and which may have within its genetic background more than one species within the genus.
(1) Note. Interspecific hybrids of stone fruits are proper for this subclass (e.g., plumcots, etc.).
  
[List of Patents for class PLT subclass 181]    181Cherry:
 This subclass is indented under subclass 180.  Stone fruit plant which belongs to the genus Prunus and is marketed as a "cherry".
(1) Note. The cherries may be further characterized as "Bird", "Pin", "Wild", "Flowering", Duke, Mahaleb, Saint Luci, Manchu, Nanking , "Sour", "Pie", "Sweet", Bing, Mazzard, Western Plum, etc.
  
[List of Patents for class PLT subclass 182]    182Ornamental:
 This subclass is indented under subclass 181.  Cherry plant which is used for ornamentation in landscape planting and which does not bear marketable fruit.
  
[List of Patents for class PLT subclass 183]    183Rootstock:
 This subclass is indented under subclass 181.  Cherry plant which is used as an understock for ornamental and fruit-bearing cherry trees.
  
[List of Patents for class PLT subclass 184]    184Plum:
 This subclass is indented under subclass 180.  Fruit plant which belongs to the genus Prunus and is marketed as a "plum".
(1) Note. The plums are further characterized as Beach, Big tree, Bullace, Damson, Canada, Chicksaw, Mountain Cherry, Common, Hortulan, Hybrid, Japanese, Myrobalan or Cherry plum, Oklahoma, Pacific, Simon, Apricot, Wild Goose, etc.
  
[List of Patents for class PLT subclass 185]    185Prune:
 This subclass is indented under subclass 184.  Plum plant which belongs to the genus Prunus and is a member of a group which may be successfully sun dried without removal of pits and marketed as a "prune".
  
[List of Patents for class PLT subclass 186]    186Apricot:
 This subclass is indented under subclass 180.  Fruit plant which belongs to the genus Prunus and is marketed as an "apricot".
(1) Note. Apricots found in this subclass include those of the species sibirica, armeniaca, mume, and dasycarpa, or hybrids having one of the subject species as the seed parent.
  
[List of Patents for class PLT subclass 187]    187Nectarine:
 This subclass is indented under subclass 180.  Fruit plant which belongs to the genus Prunus, and species persica which is characterized by having a smooth (absent fuzz or pubescence) skin covering the flesh of the fruit.
  
[List of Patents for class PLT subclass 188]    188White-fleshed clingstone, semi-clingstone, or semi-freestone:
 This subclass is indented under subclass 187.  Nectarine plant which bears fruit having flesh of predominantly white coloration and wherein the flesh once ripe is tenaciously adhered over substantially the entire surface of the stone.
(1) Note. Fruit which is described as "semi-clingstone" or "semi-freestone" is classified as "clingstone".
(2) Note. Included in this subclass is fruit with predominantly white flesh but having flecks of another color or with red stone well color.
  
[List of Patents for class PLT subclass 189]    189White fleshed freestone:
 This subclass is indented under subclass 187.  Nectarine plant which bears fruit having flesh of predominantly white coloration and wherein the flesh once ripe readily separates from the stone leaving the stone substantially free of flesh.
(1) Note. Included in this subclass is fruit with predominantly white flesh but having flecks of another color or with red stone well color.
  
[List of Patents for class PLT subclass 190]    190Yellow-fleshed clingstone, semi-clingstone, or semi-freestone:
 This subclass is indented under subclass 187.  Nectarine plant which bears fruit having flesh of predominantly yellow coloration and wherein the flesh once ripe is tenaciously adhered over substantially the entire surface of the stone.
(1) Note. For examples, see U.S. plant patent Nos. 759, 1324, and 1545.
(2) Note. Included in this subclass is fruit with flesh which is predominantly yellow but may contain flecks of color other than yellow and red stone well color.
(3) Note. Fruit which is described as "semi-clingstone" or "semi-freestone" is classified as "clingstone".
  
[List of Patents for class PLT subclass 191]    191Dwarf or semi-dwarf:
 Thi