Granted Patent
Utility
US 4,874,593 · App. 07/078,430
Conversion of pyrophoric P.sub.4 -containing material to P.sub.2 O.sub.5 material
Inventors:
Auston K. Roberts, William E. Trainer, David L. Biederman
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Jul 27, 1987
Inventors
Auston K. Roberts
William E. Trainer
David L. Biederman
Assignee (at issue)
Stauffer Chemical Company
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.