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6. Full Text PatentsExamine the full text and drawings of each patent on your list that may relate to your invention. Decide whether your ideas meet requirements for novelty and non-obviousness. Availability: Utility Patents Microfilm: 1790-1871, 1942 to date (holdings exclude patents 122,304 to 2,268,539) CASSIS USAPat: 1790-1938, 1994 to date of disc (holdings exclude patents 2,142,080 to 5,274,845). Internet: PTO Patent search (www.uspto.gov/patft/) from 1790 to date.
Design Patents Microfilm: 1951 to date CASSIS USAPat: 1843-1938, 1994 to date of disc. Internet: Design Patent Search (http://patft.uspto.gov/netahtml/search-bool.html) from 1843 to date. (Design Patent numbers have "D" prefix) The
Science Section staff can advise you where to get patents not in
SDPL's collection. |