Granted Patent
Utility
US 4,299,091 · App. 06/195,130
Portable cryogenic liquid storage-gas supply system
Inventors:
William Carter, Lester K. Eigenbrod
Patented Case
View Patent ↗
Granted: Nov 10, 1981
Filed: Oct 8, 1980
Inventors
William Carter
Lester K. Eigenbrod
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.