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:
Jan. 06, 1987
Filed:
Sep. 16, 1985
Kenneth L Jenkins, Littleton, CO (US);
Stanley C Suhaka, Englewood, CO (US);
Rick L Dolin, Littleton, CO (US);
Allan R LaRoche, Lewiston, ME (US);
Robert E Hodgson, Littleton, CO (US);
Neil R Such, Englewood, CO (US);
Douglas D Smith, Highlands Ranch, CO (US);
Frank R Newton, Littleton, CO (US);
Richard N Cunningham, Littleton, CO (US);
Manville Corporation, Denver, CO (US);
Abstract
A lightweight asphalt roofing product wherein the asphalt-based coating has a specific gravity less than 1.0. A lightweight filler is used which has an effective specific gravity in the range of 0.10-0.50 and is present in the coating in the range of 3%-25% by weight of the filled coating. In a preferred embodiment, the filler particles have hollow, gas filled inclusions, and comprise expanded perlite particles or expanded permicite particles.