Granted Patent
Utility
US 5,737,892 · App. 08/686,219
Channel-mounted interlocking panel roofing structure
Inventor:
Percy Greenberg
Patented Case
View Patent ↗
Granted: Apr 14, 1998
Filed: Jul 23, 1996
Inventor
Percy Greenberg
Assignee (at issue)
CROWN HOLDINGS, LLC
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.