Granted Patent
Utility
US 5,723,049 · App. 08/718,608
Treatment of a formaldehyde-containing waste stream
Inventor:
Robert B. Weisenfeld
Patented Case
View Patent ↗
Granted: Mar 3, 1998
Filed: Sep 23, 1996
Inventor
Robert B. Weisenfeld
Assignee (at issue)
Monsanto 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.