Granted Patent
Utility
US 4,513,255 · App. 06/461,099
Phase locked crystal oscillator implemented with digital logic elements
Inventor:
William H. Terbrack
Patented Case
View Patent ↗
Granted: Apr 23, 1985
Filed: Jan 25, 1983
Inventor
William H. Terbrack
Assignee (at issue)
Hughes Aircraft Company
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.