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:
Mar. 21, 1989
Filed:
Dec. 15, 1986
Applicant:
Inventors:
James B Eckenhoff, Los Altos, CA (US);
Felix Theeuwes, Los Altos, CA (US);
Joseph C Deters, Los Altos, CA (US);
Assignee:
ALZA Corporation, Palo Alto, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
424473 ;
Abstract
A dispenser is disclosed for delivering a beneficial agent to an environment of use. The dispenser comprises a semipermeable wall surrounding a compartment containing a heat responsive composition, and an expandable composition. A passageway in the wall connects the compartment with the exterior of the dispenser.
Eckenhoff, James. (1989). Agent dispenser comprising a semipermeable wall surrounding single-piece (U.S. Patent No. 4814180). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4814180
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile