Granted Patent
Utility
US 5,123,589 · App. 07/679,737
Reusable rigid film pack
Inventor:
Raymond A. Cote
Patented Case
View Patent ↗
Granted: Jun 23, 1992
Filed: Apr 3, 1991
Inventor
Raymond A. Cote
Assignee (at issue)
Waldorf 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.