Granted Patent
Utility
US 4,547,784 · App. 06/685,715
Thermal recording system and method
Inventors:
Irving Erlichman, Robert W. Hausslein
Patented Case
View Patent ↗
Granted: Oct 15, 1985
Filed: Dec 24, 1984
Inventors
Irving Erlichman
Robert W. Hausslein
Assignee (at issue)
Polaroid 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.