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:
Mar. 30, 1976
Filed:
Jul. 11, 1974
Applicant:
Inventor:
Phillip H Parker, San Rafael, CA (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D04H / ; D04H / ;
U.S. Cl.
CPC ...
156289 ; 156 622 ; 156181 ; 156306 ;
Abstract
Extra-wide, heat-sealed nonwoven sheets of thermoplastic synthetic polymer monofilaments are prepared by folding said sheets in layers with heat-insulating fabric between said layers before contact with heating and pressing means to effect heat sealing, followed by removal of the insulating fabric and heat sealing of the fold areas.