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:
Jan. 10, 1978
Filed:
Aug. 16, 1976
Applicant:
Inventor:
Robert Gene Laughlin, Cincinnati, OH (US);
Assignee:
The Procter & Gamble Company, Cincinnati, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61L / ;
U.S. Cl.
CPC ...
424 15 ; 128260 ; 424 14 ; 424 16 ; 424 21 ; 424 28 ;
Abstract
Controlled release articles which regulate the concentration of a surfactant compound at a useful level in an environment external to said articles are provided. The articles are especially adapted for use in or on the bodies of animals, including humans, to provide controlled release of surfactants having biological activity, for example, non-hormonal contraceptives.