Granted Patent
Utility
US 4,469,779 · App. 06/475,773
Infrared color photographic film
Inventor:
Gwynn H. Suits
Patented Case
View Patent ↗
Granted: Sep 4, 1984
Filed: Mar 16, 1983
Inventor
Gwynn H. Suits
Assignee (at issue)
Environmental Research Institute
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.