Granted Patent
Utility
US 4,254,244 · App. 05/866,829
Light-sensitive materials
Inventors:
Allen P. Gates, Allan Saunderson
Patented Case
View Patent ↗
Granted: Mar 3, 1981
Filed: Jan 4, 1978
Inventors
Allen P. Gates
Allan Saunderson
Assignee (at issue)
Vickers, Inc.
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.