Granted Patent
Utility
US 4,419,740 · App. 06/369,461
Method for storing and retrieving data
Inventor:
Charles M. Hevenor
Patented Case
View Patent ↗
Granted: Dec 6, 1983
Filed: Apr 19, 1982
Inventor
Charles M. Hevenor
Assignee (at issue)
The Gerber Scientific Instrument 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.