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. 14, 1978
Filed:
Oct. 07, 1975
Applicant:
Inventors:
Assignee:
Gulf Oil Canada Limited, Toronto, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04D / ;
U.S. Cl.
CPC ...
428143 ; 427442 ; 428144 ; 428280 ; 428281 ; 428291 ; 428489 ; 428491 ; 428920 ; 428921 ;
Abstract
The disclosure describes asphalt saturated felt building materials, optionally having a mineral filled asphalt base coating thereon, in which the asphalt saturating the felt and/or the asphalt in any mineral filled coating is a blend of 10-55% sulfur dispersed in the asphalt. The materials are used in the conventional manner as roofing felt, roofing shingles, and in built-up roofing, to obtain improved fire resistance.
Quick Actions:
Kennepohl, Gerhard. (1978). Asphalt impregnated felt building materials (U.S. Patent No. 4079158). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4079158
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile