Granted Patent
Utility
US 5,874,862 · App. 08/829,719
Phase-locked loops having two amplifiers for driving a vco
Inventors:
David Clarke, Ian G. Fobbester
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Mar 31, 1997
Inventors
David Clarke
Ian G. Fobbester
Assignee (at issue)
Plessey Semiconductors Ltd
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.