Granted Patent
Utility
US 4,492,445 · App. 06/439,733
Photographic film assemblage with means for establishing a gap _between a pair of pressure-applying assemblies
Inventor:
Philip R. Norris
Patented Case
View Patent ↗
Granted: Jan 8, 1985
Filed: Nov 8, 1982
Inventor
Philip R. Norris
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.