| Patents > Guidance, Tools, and Manuals > Classification > Class Schedule |
|
|
|
| Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP |
|
| You are viewing a USPC Schedule. |
|
| Class 351 | OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING |
| Click here for a printable version of this file | |
![[List of Pre Grant Publications for class 351 subclass 200]](../as.gif) | ![[List of Patents for class 351 subclass 200]](../ps.gif) | 200 | EYE EXAMINING OR TESTING INSTRUMENT |
| | 201 |  For fusion and space perception testing (e.g., stereoscopic vision) |
| | 203 | Eye exercising or training type |
| | 204 | For interpupillary distance measuring or lens positioning |
| | 205 | Objective type |
| | 206 |  Including eye photography |
| | 207 |  Having spurious reflection blocking |
| | 208 | Having means to detect proper distance or alignment (i.e., eye to instrument) |
| | 209 | Including eye movement detection |
| | 211 | Including projected target image |
| | 213 | Including light filter or absorber |
| | 214 | Including diaphram or slit |
| | 215 | Including light polarizing means |
| | 216 | Including lens selectively insertable in optical path |
| | 219 | With contact lens |
| | 220 | Including reflectors with off-set surfaces |
| | 221 | Including illuminator |
| | 222 | Subjective type |
| | 223 | Self examining type |
| | 224 | Perimeter type |
| | 227 | Including trial frame |
| | 228 | With multifocal lens |
| | 229 | With plural lens carrier |
| | 230 | With individual lens holder |
| | 231 | Removably attachable to eye glass frame |
| | 232 | With light polarzing lens |
| | 233 | Lens or filter selectively insertable in optical path |
| | 237 | Including target image projection |
| | 239 | Including test chart or target |
| | 245 | Support |
| | 246 | Methods of use |
| | 41 | SPECTACLES AND EYEGLASSES |
| | 42 | Lens repair devices |
| | 43 | Floating or underwater type |
| | 44 | With antiglare or shading |
| | 45 | Partially occluding the light-path area |
| | 46 | Perforated opaque plates or shields |
| | 47 | Removable and/or adjustable filters or screens (e.g., clip-on type) |
| | 49 | Polarizing |
| | 50 | With rear-view reflectors |
| | 51 | With decoration or ornamentation |
| | 53 | Shooting type |
| | 54 | Invertible or reversible multifocal type |
| | 55 | With vertical adjustment of multifocal lenses |
| | 56 | Lorgnette type |
| | 57 | With auxiliary lenses movable in and out of the optical path (e.g., clip-on type attachments) |
| | 59 | Lens pivots in and out of optical path |
| | 60 | With lens suspension bar (e.g., torsion bar) |
| | 61 | U-shape or half-moon lens below eye level |
| | 62 | With moisture prevention or absorption |
| | 63 | Folding |
| | 65 | Pince-nez type (including pince-nez bridges, nose grips and nose pads therefor) |
| | 66 | With ear chain or temple |
| | 67 | Plural bridges |
| | 68 | With resilient extensible bridge |
| | 69 | Lens and nose grip movable on flexible bridge |
| | 70 | Posts or studs connecting bridge and nose grip |
| | 71 | With spring biased nose grips |
| | 76 | With adjustable or rockable nose grips or pads |
| | 78 | Nose pads or cushions |
| | 83 | Continuous rim mounting |
| | 84 | With rotating means for multifocal lenses |
| | 85 | Upper rim portion slotted |
| | 86 | With lens retaining or locking means |
| | 87 | Nose guards or pads integral with frame |
| | 88 | Nose guards or pads removable or adjustable |
| | 89 | With brace arm temple support |
| | 90 | Split rim mounting |
| | 91 | With brow pieces or top arms |
| | 93 | With brace arm supports for temple or lens |
| | 94 | With auxiliary bridge |
| | 95 | Expansible and contractible lens rim |
| | 96 | Locking member secures lens against rotation |
| | 97 | Split connected by U-clamps or pivot links |
| | 98 | Split on nasal side of rim (i.e., at bridge) |
| | 99 | Clamp and temple pivot screw spaced along rim clamping arm |
| | 100 | Clamp and temple pivot screw coincident on rim clamping arm |
| | 101 | Metal clamps embrace the rims and connect to bridge and/or temples |
| | 102 | Combined metal and plastic rims |
| | 103 | Brace arm or semi-rimless mounting |
| | 104 | Arm or rim of plastic or of different material (e.g., metal and plastic) |
| | 105 | Detachable brace arm |
| | 106 | Screwless lens mounting |
| | 107 | With adjustable lens or frame part |
| | 108 | Brace arm supports lens at two spaced points or constitutes a partial rim |
| | 109 | Brace arm extends along edge of lens |
| | 110 | Rimless mounting |
| | 111 | Temples |
