Granted Patent
Utility
US 4,396,362 · App. 06/202,476
Cryogenic reciprocating pump
Inventors:
David R. Thompson, Boris Pevzner
Patented Case
View Patent ↗
Granted: Aug 2, 1983
Filed: Oct 31, 1980
Inventors
David R. Thompson
Boris Pevzner
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.