Granted Patent
Utility
US 4,668,922 · App. 06/756,407
Fast phase-lock frequency synthesizer
Inventors:
James Crawford, Gary D. Frey
Patented Case
View Patent ↗
Granted: May 26, 1987
Filed: Jul 17, 1985
Inventors
James Crawford
Gary D. Frey
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.