Granted Patent
Utility
US 4,980,909 · App. 07/430,250
Protector module for laminar type telephone blocks
Inventors:
Carl H. Meyerhoefer, Peter Visconti, Michael Fasano
Patented Case
View Patent ↗
Granted: Dec 25, 1990
Filed: Nov 2, 1989
Inventors
Carl H. Meyerhoefer
Peter Visconti
Michael Fasano
Assignee (at issue)
Porta Systems 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.