Granted Patent
Utility
US 4,675,779 · App. 06/899,916
Telephone protector module having self-contained sealing means
Inventor:
Helmuth Neuwirth
Patented Case
View Patent ↗
Granted: Jun 23, 1987
Filed: Aug 25, 1986
Inventor
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.