Granted Patent
Utility
US 4,360,271 · App. 06/167,066
Interferometer systems
Inventors:
Michael J. Downs, Kenneth W. Raine
Patented Case
View Patent ↗
Granted: Nov 23, 1982
Filed: Sep 13, 1979
Inventors
Michael J. Downs
Kenneth W. Raine
Assignee (at issue)
NATIONAL RESEARCH DEVELOPMENT 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.