Granted Patent
Utility
US 4,891,189 · App. 07/215,712
High flow chemical oxygen generator assembly
Inventor:
Van Ness Harwood, Jr.
Patented Case
View Patent ↗
Granted: Jan 2, 1990
Filed: Jul 6, 1988
Inventor
Van Ness Harwood, Jr.
Assignee (at issue)
Figgie Inernational 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.