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:
Nov. 12, 1996
Filed:
Sep. 21, 1994
Lawrence J Grubka, Heath, OH (US);
Owens-Corning Fiberglas Technology Inc., Summit, IL (US);
Abstract
A method of manufacturing a microorganism resistant asphaltic roofing shingle includes supplying a tacky asphaltic strip material having a prime lane, and applying prime granules onto the prime lane to substantially cover the prime lane so that approximately all of the prime granules adhere to the asphaltic strip material. An excessive amount of backfall granules are applied onto the prime lane on top of the prime granules. Prior to applying the prime granules onto the prime lane of the asphaltic strip material, anti-microorganism granules are applied onto the prime lane so that nearly 100 percent of the anti-microorganism granules adhere to the asphaltic strip material.