Granted Patent
Utility
US 5,062,898 · App. 07/534,810
Surface cleaning using a cryogenic aerosol
Inventors:
Wayne Thomas McDermott, Richard Carl Ockovic, Jin J. Wu, Douglas W. Cooper, Alexander Schwarz, Henry L. Wolfe
Patented Case
View Patent ↗
Granted: Nov 5, 1991
Filed: Jun 5, 1990
Inventors
Wayne Thomas McDermott
Richard Carl Ockovic
Jin J. Wu
Douglas W. Cooper
Alexander Schwarz
Henry L. Wolfe
Assignees (at issue)
Air Products and Chemicals, Inc.
International Business Machines Corporation
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.