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:
Dec. 07, 1976
Filed:
May. 07, 1975
Jerome L Murray, New York, NY (US);
Francis R Gardiner, Sparta, NJ (US);
Other;
Abstract
A catamenial device such as a tampon which comprises a segment of a rapidly re-expandable hydrophilic polymeric foam held in compression to less than 50 percent of its original dry volume and a constraining means holding said segment in compression which is adapted to provide lubrication for insertion of said segment into an animal's body cavity and to thereafter rapidly disintegrate, wherein said constraining means comprises a coating material comprising a mixture of sodium bicarbonate and citric acid. Said coating material may be provided by the application of a solution to the surface of said foam segment, or by full impregnation. In a further embodiment, said coating material may be introduced into said foam in particulate form to serve as a novel release agent in a segment which is subsequently constrained within a gelatin capsule.