Granted Patent
Utility
US 4,513,414 · App. 06/370,930
Clocking arrangement for telephone switching system
Inventors:
Paul H. Knapke, Robert L. Miller
Patented Case
View Patent ↗
Granted: Apr 23, 1985
Filed: Apr 22, 1982
Inventors
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.