Granted Patent
Utility
US 4,293,633 · App. 06/096,648
Reflex copying process onto light-sensitive recording materials
Inventors:
Roy F. Huffey, John A. Pope
Patented Case
View Patent ↗
Granted: Oct 6, 1981
Filed: Nov 23, 1979
Inventors
Roy F. Huffey
John A. Pope
Assignee (at issue)
Bexford 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.