Granted Patent
Utility
US 4,535,379 · App. 06/604,882
Telephone protector module with auxiliary fusible element
Inventors:
Paul V. De Luca, Helmuth Neuwirth
Patented Case
View Patent ↗
Granted: Aug 13, 1985
Filed: Apr 27, 1984
Inventors
Paul V. De Luca
Helmuth Neuwirth
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.