Granted Patent
Utility
US 4,581,493 · App. 06/559,102
Line condition reporting system
Inventors:
John Gazzo, Carmine Cupani, Edward Chiodo, Thomas Mazz
Patented Case
View Patent ↗
Granted: Apr 8, 1986
Filed: Dec 7, 1983
Inventors
John Gazzo
Carmine Cupani
Edward Chiodo
Thomas Mazz
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.