Granted Patent
Utility
US 6,692,608 · App. 09/934,915
Method of making simulated wood shake shingle having vertical shadow lines
Inventor:
John D. Phillips
Patented Case
View Patent ↗
Granted: Feb 17, 2004
Filed: Aug 22, 2001
Inventor
John D. Phillips
Assignee (at issue)
Owens-Corning Fiberglas Technology, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.