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. 01, 1983
Filed:
May. 26, 1981
Applicant:
Inventor:
Giovanni Gazzani, Appiano Gentile, IT;
Assignee:
Crinos Industria Farmabiologica S.p.A., Villa Guardia, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
424 78 ; 424 79 ; 424258 ; 424291 ; 424317 ; 424329 ; 424341 ; 424D / ;
Abstract
The use of crosslinked polysaccharides as vehicles for spermicidal substances in compositions used for local contraception is described. The crosslinked polysaccharide (e.g. a modified dextran) is admixed with the spermicidal agent and formed into tablets for vaginal applications; the dextran swells in contact with the vaginal secretion and includes the seminal liquid thus bringing into contact the sperm cells with the spermicidal substances dispersed therein.