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:
Aug. 11, 1998
Filed:
Aug. 08, 1997
Applicant:
Inventors:
Barry Gene Calvert, Covington, VA (US);
Ralph Scott Peterson, Clifton Forge, VA (US);
Assignee:
Westvaco Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
1562728 ; 1562753 ; 1562757 ; 156324 ; 372102 ; 359566 ;
Abstract
This invention relates to a method and apparatus for heat sealing polymer coated paperboard substrates with light energy. Such structures of this type, generally, use lasers which allow a very accurate placement of the sealing energy and a controllable energy level.
Calvert, Barry. (1998). Method for heat sealing paperboard substrates using a uniform energy (U.S. Patent No. 5792301). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5792301
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile