Granted Patent
Utility
US 4,933,484 · App. 07/303,876
Method for reducing the concentration of acrylonitrile in an aqueous-acrylonitrile vapor stream
Inventors:
Ramesh N. Gujarathi, Carole I. Wendt, Edward K. Kazanjian, Ann M. Jones
Patented Case
View Patent ↗
Granted: Jun 12, 1990
Filed: Jan 30, 1989
Inventors
Ramesh N. Gujarathi
Carole I. Wendt
Edward K. Kazanjian
Ann M. Jones
Assignee (at issue)
THE GOODYEAR TIRE & RUBBER 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.