The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 21, 1984
Filed:
Jun. 25, 1982
Applicant:
Inventor:
Chester D Szymanski, Martinsville, NJ (US);
Assignee:
National Starch and Chemical Corp., Bridgewater, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ;
U.S. Cl.
CPC ...
424 78 ; 424 81 ; 424D / ;
Abstract
A contraceptive composition for vaginal administration which contains a salt of a sulfonated styrene polymer and a pharmaceutically acceptable carrier. Effective polymers have a degree of substitution of from about 0.7 to 1.3 and an average molecular weight of between 600 and 7,000,000.