Granted Patent
Utility
US 4,977,379 · App. 07/373,557
Differential pair, push-push oscillator
Inventor:
Ronald F. Kielmeyer, Jr.
Patented Case
View Patent ↗
Granted: Dec 11, 1990
Filed: Jun 30, 1989
Inventor
Ronald F. Kielmeyer, Jr.
Assignee (at issue)
Motorola, 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.