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:
Apr. 27, 1982
Filed:
Sep. 26, 1979
Applicant:
Inventors:
Assignee:
Goetze AG, Burscheid, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; F02F / ;
U.S. Cl.
CPC ...
156212 ; 156150 ; 156153 ; 156654 ; 156D / ; 204 15 ; 204 25 ; 2042 / ; 277216 ; 2772 / ; 427256 ; 427282 ; 427287 ; 428 40 ; 428339 ;
Abstract
Piston rings of asymmetrical cross section are identified by providing a surface marking which extends from one flank face of the piston ring to the outer circumferential face (running face) thereof.
Bornefeld, Horst. (1982). Method of identifying piston rings (U.S. Patent No. 4326907). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4326907
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile