Granted Patent
Utility
US 4,673,944 · App. 06/588,600
Autocalibrating interferometer
Inventor:
Ross E. Graves
Patented Case
View Patent ↗
Granted: Jun 16, 1987
Filed: Mar 12, 1984
Inventor
Ross E. Graves
Assignee (at issue)
Hughes Aircraft Company
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.