Granted Patent
Utility
US 5,753,753 · App. 08/803,172
Hydrolysis of polyvinyl aklaenoates
Inventors:
Kien Van Phung, Dennis Sagl
Patented Case
View Patent ↗
Granted: May 19, 1998
Filed: Feb 19, 1997
Inventors
Kien Van Phung
Dennis Sagl
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.