Granted Patent
Utility
US 4,796,253 · App. 07/142,987
Time base converter employing two reference position phase lock loop
Inventor:
Rex J. Crookshanks
Patented Case
View Patent ↗
Granted: Jan 3, 1989
Filed: Jan 12, 1988
Inventor
Rex J. Crookshanks
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.