Granted Patent
Utility
US 4,473,726 · App. 06/424,212
Contact pin and mounting construction for multipole data switch
Inventor:
Peter Hung
Patented Case
View Patent ↗
Granted: Sep 25, 1984
Filed: Sep 27, 1982
Inventor
Peter Hung
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.