IP Library › Granted Patent US 5,666,776
Granted Patent Utility
US 5,666,776 · App. 08/521,235

Laminated roofing shingle

Inventors: Casimir Paul Weaver, Matti Kiik, William J. Schultz, Patrick T. Stapleton
Patented Case View Patent ↗
Granted: Sep 16, 1997 Filed: Aug 30, 1995
Inventors
Casimir Paul Weaver
Matti Kiik
William J. Schultz
Patrick T. Stapleton
Assignee (at issue)
Elk Corporation of Dallas

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Quick Facts
Patent No.
US 5,666,776
App. No.
08/521,235
Filed
1995-08-30
Granted
1997-09-16
Kind
A