Granted Patent
Utility
US 4,756,789 · App. 07/065,912
Tool for applying glass insulating strips
Inventor:
John C. Kolff
Patented Case
View Patent ↗
Granted: Jul 12, 1988
Filed: Jun 24, 1987
Inventor
John C. Kolff
Assignee (at issue)
Peak Distributing Limited
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.