Granted Patent
Utility
US 4,364,071 · App. 06/201,691
Electrographic recording
Inventor:
Donald E. Shafer
Patented Case
View Patent ↗
Granted: Dec 14, 1982
Filed: Oct 29, 1980
Inventor
Donald E. Shafer
Assignee (at issue)
Honeywell Limited
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.