Granted Patent
Utility
US 4,800,341 · App. 07/115,027
Fast switching frequency synthesizer
Inventor:
Edgar A. Johnson
Patented Case
View Patent ↗
Granted: Jan 24, 1989
Filed: Nov 2, 1987
Inventor
Edgar A. Johnson
Assignee (at issue)
Eaton 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.