Granted Patent
Utility
US 5,741,871 · App. 08/663,496
Acrylic emulsions prepared in the presence of fully hydrolyzed poly (vinyl alcohol)
Inventors:
Richard Henry Bott, Frank Vito DiStefano
Patented Case
View Patent ↗
Granted: Apr 21, 1998
Filed: Jun 14, 1996
Inventors
Richard Henry Bott
Frank Vito DiStefano
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.