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:
Apr. 06, 1982
Filed:
Dec. 22, 1978
Arthur Scherm, Bad Homburg, DE;
Merz & Co., Frankfurt, DE;
Abstract
A spermicidally-active vaginal suppository consisting essentially of a solid water-soluble polymeric material which melts at body temperature, for example, a polyethylene glycol, having dispersed therein minor amounts of a spermicide, for example, p-nonylphenoxypolyethoxyethanol, a foaming agent operative when the suppository is dissolved in aqueous media to generate a foam-forming gas, for example, a mixture of a water-soluble bicarbonate and a solid weak acid, and a foam-stabilizing agent which is characterized by containing a surfactant, which is effective to reduce the surface tension of water to less than 45 dynes per centimeter, for example, sodium lauryl sulfate, and lactalbumin.