Granted Patent
Utility
US 4,776,007 · App. 06/865,961
Solid state trunk circuit
Inventors:
Zbigniew B. Styrna, Douglas Oddy
Patented Case
View Patent ↗
Granted: Oct 4, 1988
Filed: May 22, 1986
Inventors
Zbigniew B. Styrna
Douglas Oddy
Assignee (at issue)
Mitel 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.