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:
Nov. 10, 1992
Filed:
Nov. 18, 1991
Applicant:
Inventor:
Michael T Shepherd, Berkhamsted, GB;
Assignee:
Coopers Animal Health Limited, Hertfordshire, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61D / ; A61M / ; A61K / ;
U.S. Cl.
CPC ...
424438 ; 424422 ; 604135 ; 604143 ; 604150 ;
Abstract
An intraruminal device for controlled release of a drug formulation in the rumen of an animal, comprises an open-ended tube for containing the drug formulation, a piston adapted to travel longitudinally within the tube and biased so as to deliver the drug formulation through the open end of the tube. Travelling with the piston is an associated weight adapted to retain the device within the rumen during delivery of the drug formulation.