Granted Patent
Utility
US 5,961,023 · App. 08/939,571
Film transport roller assembly
Inventor:
Robert J. Mattila
Patented Case
View Patent ↗
Granted: Oct 5, 1999
Filed: Sep 29, 1997
Inventor
Robert J. Mattila
Assignee (at issue)
Imation Corp.
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.