Granted Patent
Utility
US 5,801,852 · App. 08/473,199
Positive sleeving system for photographic negatives
Inventors:
James A. Truc, Douglas B. Peterson, James G. Hogenson
Patented Case
View Patent ↗
Granted: Sep 1, 1998
Filed: Jun 7, 1995
Inventors
James A. Truc
Douglas B. Peterson
James G. Hogenson
Assignee (at issue)
Pakon, 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.