Granted Patent
Utility
US 4,463,202 · App. 06/408,980
Di-aryl monochlorophosphine waste treatment
Inventor:
Gershon J. Davis
Patented Case
View Patent ↗
Granted: Jul 31, 1984
Filed: Aug 17, 1982
Inventor
Gershon J. Davis
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.