Granted Patent
Utility
US 4,634,861 · App. 06/683,600
Rotary switch with reflector coded actuator drum
Inventors:
Stephen Ching, Frank B. Babbitt, Jr., Adnan I. Merchant
Patented Case
View Patent ↗
Granted: Jan 6, 1987
Filed: Dec 19, 1984
Inventors
Stephen Ching
Frank B. Babbitt, Jr.
Adnan I. Merchant
Assignee (at issue)
General Instrument 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.