Granted Patent
Utility
US 4,400,668 · App. 06/275,356
Period proportional two-phase voltage controlled oscillator
Inventor:
Dale M. Uetrecht
Patented Case
View Patent ↗
Granted: Aug 23, 1983
Filed: Jun 19, 1981
Inventor
Dale M. Uetrecht
Assignee (at issue)
Baldwin Piano & Organ 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.