Granted Patent
Utility
US 5,691,872 · App. 08/654,596
Single line, multiple line telecommunications surge protector
Inventor:
Richard L. Cohen
Patented Case
View Patent ↗
Granted: Nov 25, 1997
Filed: May 29, 1996
Inventor
Richard L. Cohen
Assignee (at issue)
Panamax 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.