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:
Sep. 28, 2004
Filed:
Dec. 22, 2000
Applicant:
Inventors:
Donald A. Lines, Vancouver, CA;
Nicholas A. Fletcher, Vancouver, CA;
Eric G. Pow, Vancouver, CA;
Michael Sexsmith, North Vancouver, CA;
Bill Gray, Richmond, CA;
Horst Thumm, North Vancouver, CA;
Assignee:
Ballard Power Systems Inc., Burnaby, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 3/122 ; B32B 3/118 ; B32B 3/116 ; B29C 5/902 ; B29C 4/356 ;
U.S. Cl.
CPC ...
B32B 3/122 ; B32B 3/118 ; B32B 3/116 ; B29C 5/902 ; B29C 4/356 ;
Abstract
An improved method for embossing expanded graphite sheet material including removing at least a portion of the gas from within the material by exposing the material to a pressure less than atmospheric pressure, and then embossing the material.
Quick Actions:
Lines, Donald. (2004). Method for embossing expanded graphite sheet material under reduced pressure (U.S. Patent No. 6797091). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6797091
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile