Granted Patent
Utility
US 6,326,508 · App. 09/654,631
Purification and recovery of acetonitrile
Inventors:
Sanjay P. Godbole, Richard Lee Wappelhorst, Paul Jacobson
Patented Case
View Patent ↗
Granted: Dec 4, 2001
Filed: Sep 5, 2000
Inventors
Sanjay P. Godbole
Richard Lee Wappelhorst
Paul Jacobson
Assignee (at issue)
The Standard Oil 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.