Granted Patent
Utility
US 4,155,206 · App. 05/897,671
Insulated metal roofing system
Inventor:
Wayne H. Player
Patented Case
View Patent ↗
Granted: May 22, 1979
Filed: Apr 19, 1978
Inventor
Wayne H. Player
Assignee (at issue)
HOWMET CORPORATION
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.