Granted Patent
Utility
US 5,943,100 · App. 08/887,972
Circuit arrangement for frequency conversion of a color signal
Inventors:
Gunter Hildebrandt, Herbert Heinemann
Patented Case
View Patent ↗
Granted: Aug 24, 1999
Filed: Jul 3, 1997
Inventors
Gunter Hildebrandt
Herbert Heinemann
Assignee (at issue)
U.S. Philips Corporation
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.