Granted Patent
Utility
US 6,058,670 · App. 09/173,406
Laminated roofing and siding shingle
Inventors:
Frederick W. Sieling, Alfredo A. Bondoc, William R. Carroll
Patented Case
View Patent ↗
Granted: May 9, 2000
Filed: Oct 15, 1998
Inventors
Frederick W. Sieling
Alfredo A. Bondoc
William R. Carroll
Assignee (at issue)
Building Materials Corporation of America
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.