Granted Patent
Utility
US 4,490,581 · App. 06/431,900
Clock selection control circuit
Inventors:
Ivan L. Edwards, Max S. Macrander, Ashfaq R. Khan
Patented Case
View Patent ↗
Granted: Dec 25, 1984
Filed: Sep 30, 1982
Inventors
Ivan L. Edwards
Max S. Macrander
Ashfaq R. Khan
Assignee (at issue)
GTE Automatic Electric Labs 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.