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. 12, 1991
Filed:
Nov. 13, 1989
Thomas J Zickell, Stratham, NH (US);
Steven C Bettoli, Bound Brook, NJ (US);
GAF Buildinhg Materials Corp., Wayne, NJ (US);
Abstract
A bituminous roofing membrane, and method of manufacture, is disclosed having a reinforcing mat sandwiched between top and bottom layers of a tacky polymer modified bitumen. The leading edge portion of the top layer is provided with a layer of roofing granules. A track of adhesive is provided on the roofing granules. The trailing edge portion of the top layer is provided with a layer of non-slip plastic film. A release sheet is applied to the bottom layer of the membrane to prevent engagement of the top and bottom layers with one another when the membrane is rolled for storage or shipment. In use, upon removal of the release sheet, the membrane is secured to the roof with the leading edge portion constituting a starter strip for receiving thereon the first row of roofing shingles, and the trailing edge portion constituting an underlayment for receiving thereon successive rows of roofing shingles.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile