Granted Patent
Utility
US 4,481,176 · App. 06/538,696
Treatment for phosphorus-containing waste material
Inventors:
David L. Dodson, Bruce D. Pate, Philip C. Rogers
Patented Case
View Patent ↗
Granted: Nov 6, 1984
Filed: Oct 3, 1983
Inventors
David L. Dodson
Bruce D. Pate
Philip C. Rogers
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.