IP Library › Granted Patent US 4,944,003
Granted Patent Utility
US 4,944,003 · App. 07/413,689

Solid state telephone protector module

Inventors: Carl H. Meyerhoefer, Helmuth Neuwirth, Peter Visconti
Patented Case View Patent ↗
Granted: Jul 24, 1990 Filed: Sep 28, 1989
Inventors
Carl H. Meyerhoefer
Helmuth Neuwirth
Peter Visconti
Assignee (at issue)
Porta Systems Corporation

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Quick Facts
Patent No.
US 4,944,003
App. No.
07/413,689
Filed
1989-09-28
Granted
1990-07-24
Kind
A