Granted Patent
Utility
US 4,254,382 · App. 06/021,524
Crystal oscillator temperature compensating circuit
Inventors:
Anthony F. Keller, Albert V. Kraybill
Patented Case
View Patent ↗
Granted: Mar 3, 1981
Filed: Mar 19, 1979
Inventors
Anthony F. Keller
Albert V. Kraybill
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.