STO's Patent Search System: Abstracts

Only abstracts for patents between 4242757 and 4890334 (1981 - 1989) are available. Enter patent number and abstract will be returned.

STO's Patent Search System: Class/Code

Appears to go up to February 28th, 1995. Enter a Enter class/subclass code, e.g. 363-131. Returns title, year and patent number.

          ____ Quick Help for Fields and Operators ___ (Caps for emphasis. Not required in search) ADJn=term1 ahead of term2     by n or less words AND=term1 and term2 both in the same record NEAR=term1 within 5 words       of term1, either order NOT NEAR=term1 not within 5 words     of term1, either order NEARn=term2 within n words     of term1, either order NOT=term1 present, term2 not present    e.g., x NOT y AND NOT=same as NOT OR=term1 or term2 or both in same record SAME=term1 and term2 in same field NOT SAME=term1 and term2 not in same field WITH=term1 in same sentence as term2 NOT WITH=term1 not in same sentence as term2 XOR=term1 or term2, but not both,     in same record Lexis operators w/n and pre/n are valid APS ops (nP), (nL), (nA) and (nW) valid __________________________________________ Use fld=term syntax to search fields Valid fields: (see manual for list) TI=title of record, TX=text of record REF=reference information, AU=author