Granted Patent
Utility
US 4,495,614 · App. 06/371,052
Circuit for interfacing a processor to a line circuit
Inventors:
Enn Aro, Leonard Edward Bogan, Jr., Richard A. Hamersley, Paul H. Knapke, Robert L. Miller
Patented Case
View Patent ↗
Granted: Jan 22, 1985
Filed: Apr 22, 1982
Inventors
Enn Aro
Leonard Edward Bogan, Jr.
Richard A. Hamersley
Paul H. Knapke
Robert L. Miller
Assignee (at issue)
International Telephone and Telegraph 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.