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. 07, 1989
Filed:
Sep. 04, 1986
Applicant:
Inventor:
Gautam R Ranade, East Lyme, CT (US);
Assignee:
Pfizer Inc., New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
A23K / ; A01N / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
424438 ; 424468 ; 424475 ; 424486 ; 425352 ; 425353 ;
Abstract
A device for the controlled release of a substance having useful activity into a fluid medium at a substantially constant rate, said substance contained in a shape which is substantially that of a truncated cone by means of an impermeable wall or coating on the base and side (but not the top) of said truncated cone. Apparatus useful in manufacture when said device is a tablet for administration to a mammal.