Granted Patent
Utility
US 5,995,346 · App. 09/022,342
Cartridge having a passive shutter opening mechanism
Inventors:
Brian Schick, Douglas Mayne
Patented Case
View Patent ↗
Granted: Nov 30, 1999
Filed: Feb 11, 1998
Inventors
Brian Schick
Douglas Mayne
Assignee (at issue)
IO-Mega Holding 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.