Granted Patent
Utility
US 5,789,947 · App. 08/716,078
Phase comparator
Inventor:
Masatoshi Sato
Patented Case
View Patent ↗
Granted: Aug 4, 1998
Filed: Sep 19, 1996
Inventor
Masatoshi Sato
Assignee (at issue)
Nippon Precision Circuits Inc.
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.