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Classes 91 - 131

Class Date Established
91 1963
92 1963
95 1993
96 1993
99 1935
100 1952
101 1916
102 1902
104 1918
105 1918
106 1899
108 1963
109 1938
110 1906
111 1917
112 1919
114 1905
116 1919
117 1994
118 1952
119 1910
122 1911
123 1905
124 1937
125 1918
126 1907
127 1923
128 1919
131 1939
United States Patent and Trademark Office
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Last Modified: 7/1/2010 9:27:43 AM