Granted Patent
Utility
US 4,998,075 · App. 07/427,197
Programmable multiple oscillator circuit
Inventors:
Charles R. Patton, III, Timothy G. O'Shaughnessy
Patented Case
View Patent ↗
Granted: Mar 5, 1991
Filed: Oct 26, 1989
Inventors
Charles R. Patton, III
Timothy G. O'Shaughnessy
Assignee (at issue)
Western Digital
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.