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:
Oct. 06, 1998
Filed:
Jun. 07, 1995
Applicant:
Inventor:
Olle Ljungquist, Taby, SE;
Assignee:
Pharmacia & Upjohn Aktiebolag, Stockholm, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604 89 ; 604 82 ; 604232 ;
Abstract
An injection cartridge of the dual-chamber type, which comprises a cylindrical cartridge barrel having a front chamber for a solid product and a rear chamber for a liquid product. The chambers are sealingly separated by a displaceable piston of a resilient material, and have an openable bypass connection for liquid from the rear chamber to the front chamber and a resilient sealing closure of the front end of the front chamber.