Granted Patent
Utility
US 4,623,762 · App. 06/680,035
Static discharge snubber circuit for silicon controlled rectifier (SCR) type telephone hold devices
Inventors:
Eduard F. B. Boeckmann, Miranda L. James
Patented Case
View Patent ↗
Granted: Nov 18, 1986
Filed: Dec 10, 1984
Inventors
Eduard F. B. Boeckmann
Miranda L. James
Assignee (at issue)
GTE Communication 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.