Granted Patent
Utility
US 4,305,643 · App. 06/102,259
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Inventor:
Christopher H. Tosswill
Patented Case
View Patent ↗
Granted: Dec 15, 1981
Filed: Dec 10, 1979
Inventor
Christopher H. Tosswill
Assignee (at issue)
Galileo Electro-Optics 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.