Granted Patent
Utility
US 4,711,765 · App. 06/881,362
Sorption/desorption gas analysis apparatus
Inventors:
Marion H. Cates, Eugene L. Szonntagh
Patented Case
View Patent ↗
Granted: Dec 8, 1987
Filed: Jul 2, 1986
Inventors
Marion H. Cates
Eugene L. Szonntagh
Assignee (at issue)
Honeywell Limited
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.