Granted Patent
Utility
US 4,249,821 · App. 06/050,731
Belt microfilm camera
Inventors:
Michael W. Rudy, Forrest L. Langford, Robert D. Therien
Patented Case
View Patent ↗
Granted: Feb 10, 1981
Filed: Jun 21, 1979
Inventors
Michael W. Rudy
Forrest L. Langford
Robert D. Therien
Assignee (at issue)
Terminal Data 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.