Granted Patent
Utility
US 5,223,144 · App. 07/564,262
Process for treatment of aqueous soluions of polyhydric alcohols
Inventors:
Peter M. Woyciesjes, Aleksei V. Gershun, Stephen M. Woodward
Patented Case
View Patent ↗
Granted: Jun 29, 1993
Filed: Aug 8, 1990
Inventors
Peter M. Woyciesjes
Aleksei V. Gershun
Stephen M. Woodward
Assignee (at issue)
First Brands Corporation
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.