Granted Patent
Utility
US 5,858,022 · App. 08/921,620
Dry cleaning methods and compositions
Inventors:
Timothy J. Romack, David F. Cauble, James B. McClain
Patented Case
View Patent ↗
Granted: Jan 12, 1999
Filed: Aug 27, 1997
Inventors
Timothy J. Romack
David F. Cauble
James B. McClain
Assignee (at issue)
Micell 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.