Granted Patent
Utility
US 4,314,982 · App. 06/050,764
Catalytic decomposition of H.sub.2 SO.sub.4
Inventors:
John H. Norman, David G. Williamson
Patented Case
View Patent ↗
Granted: Feb 9, 1982
Filed: Jun 21, 1979
Inventors
John H. Norman
David G. Williamson
Assignee (at issue)
General Atomics
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.