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:
Apr. 10, 2001
Filed:
Nov. 13, 1998
Applicant:
Inventors:
Husnu M. Kalkanoglu, Swarthmore, PA (US);
Kermit E. Stahl, North Wales, PA (US);
Joseph Quaranta, Yardley, PA (US);
Assignee:
CertainTeed Corporation, , PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04D 1/28 ;
U.S. Cl.
CPC ...
E04D 1/28 ;
Abstract
A shingle and a method of and apparatus for making the shingle is provided, whereby patches of pre-selected granules or combinations of granules are provided, separated by transverse areas of different, preferably darker granules, having slots centrally thereof, to yield the appearance of multi-tab shingles that are thicker than they actually are, with transverse shadow lines. A longitudinal shadow line is optionally provided, along the upper and/or lower portion of the exposed tab.