Granted Patent
Utility
US 4,324,474 · App. 06/152,071
Microfilming system
Inventors:
Edward J. Kraemer, Robert D. Therien, Michael W. Rudy, Frederick E. Walsh, Han-Jung Lee, Ronald Thomas Bell, Thomas D. Horning
Patented Case
View Patent ↗
Granted: Apr 13, 1982
Filed: May 21, 1980
Inventors
Edward J. Kraemer
Robert D. Therien
Michael W. Rudy
Frederick E. Walsh
Han-Jung Lee
Ronald Thomas Bell
Thomas D. Horning
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.