Granted Patent
Utility
US 5,322,701 · App. 08/004,786
Carbon dioxide absorbent packet and process
Inventors:
John S. Cullen, Nicholas E. Vaylen
Patented Case
View Patent ↗
Granted: Jun 21, 1994
Filed: Jan 14, 1993
Inventors
John S. Cullen
Nicholas E. Vaylen
Assignee (at issue)
Multiform Desiccants, 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.