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:
Feb. 24, 1976
Filed:
Jan. 04, 1971
Applicant:
Inventor:
Robert J Schmidt, El Cerrito, CA (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; C09J / ; E04B / ;
U.S. Cl.
CPC ...
428332 ; 156 71 ; 156337 ; 428280 ; 428291 ; 428334 ; 428335 ; 428489 ;
Abstract
Built-up roofing employing precoated felts are inhibited from slipping by the use of bituminous emulsions to bind the felts. A minor amount of a compatible latex is incorporated into the emulsion to increase the adhesion of the bonded felts.
Schmidt, Robert. (1976). Non-slip built-up roofing (U.S. Patent No. 3940540). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3940540
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile