Granted Patent
Utility
US 6,014,847 · App. 09/143,897
Laminated roofing shingle having staggered shadow lines and method of making the same
Inventor:
John D. Phillips
Patented Case
View Patent ↗
Granted: Jan 18, 2000
Filed: Aug 31, 1998
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.