Granted Patent
Utility
US 4,401,694 · App. 06/137,069
Method and apparatus for an optical sensor utilizing semiconductor filters
Inventors:
William H. Quick, Kenneth A. James, Virgil H. Strahan
Patented Case
View Patent ↗
Granted: Aug 30, 1983
Filed: Apr 3, 1980
Inventors
William H. Quick
Kenneth A. James
Virgil H. Strahan
Assignee (at issue)
Rockwell International 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.