Granted Patent
Utility
US 5,872,289 · App. 08/036,517
Hydrolysis of carboxylic acid alkyl esters in the liquid phase
Inventors:
John B. Appleby, Francis J. Waller, Stephen Charles Webb
Patented Case
View Patent ↗
Granted: Feb 16, 1999
Filed: Mar 6, 1998
Inventors
John B. Appleby
Francis J. Waller
Stephen Charles Webb
Assignee (at issue)
Air Products and Chemicals, Inc.
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.