Granted Patent
Utility
US 5,219,529 · App. 07/947,905
Cartridge assembly
Inventors:
That T. Ngo, Raphael Wong
Patented Case
View Patent ↗
Granted: Jun 15, 1993
Filed: Sep 14, 1992
Inventors
That T. Ngo
Raphael Wong
Assignee (at issue)
UniSyn Technologies, 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.