Granted Patent
Utility
US 5,157,341 · App. 07/565,065
Phase detector
Inventors:
Ian G. Fobbester, David Clarke
Patented Case
View Patent ↗
Granted: Oct 20, 1992
Filed: Aug 10, 1990
Inventors
Ian G. Fobbester
David Clarke
Assignee (at issue)
Plessey Overseas Limited
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.