Granted Patent
Utility
US 4,674,245 · App. 06/822,435
Roof walkway panel
Inventor:
George S. Turner
Patented Case
View Patent ↗
Granted: Jun 23, 1987
Filed: Jan 27, 1986
Inventor
George S. Turner
Assignee (at issue)
DiversiTech 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.