Granted Patent
Utility
US 5,191,721 · App. 07/767,490
Microwave regenerable desiccant cartridge
Inventors:
Samuel A. Incorvia, Joseph L. Iwaniszek
Patented Case
View Patent ↗
Granted: Mar 9, 1993
Filed: Sep 30, 1991
Inventors
Samuel A. Incorvia
Joseph L. Iwaniszek
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.