Granted Patent
Utility
US 4,481,780 · App. 06/568,909
Process for the generation of a cold gas
Inventor:
Mark A. Delano
Patented Case
View Patent ↗
Granted: Nov 13, 1984
Filed: Jan 6, 1984
Inventor
Mark A. Delano
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.