Granted Patent
Utility
US 6,426,151 · App. 09/243,776
Water borne pressure sensitive adhesive compositions derived from copolymers of higher vinyl esters
Inventors:
Chung-Ling Mao, Kenneth M. Kem
Patented Case
View Patent ↗
Granted: Jul 30, 2002
Filed: Feb 3, 1999
Inventors
Chung-Ling Mao
Kenneth M. Kem
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.