Granted Patent
Utility
US 4,856,285 · App. 07/246,862
Cryo-mechanical combination freezer
Inventors:
Arun Acharya, Michael A. Marchese, Jeffert John Nowobilski
Patented Case
View Patent ↗
Granted: Aug 15, 1989
Filed: Sep 20, 1988
Inventors
Arun Acharya
Michael A. Marchese
Jeffert John Nowobilski
Assignee (at issue)
Union Carbide 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.