Granted Patent
Utility
US 6,420,023 · App. 09/597,188
Plasticizer resistant latex emulsion pressure sensitive adhesive and its production
Inventors:
Tony Kyle Rowley, Raymond Scott Harvey, Harvey J. Richards
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Jun 20, 2000
Inventors
Tony Kyle Rowley
Raymond Scott Harvey
Harvey J. Richards
Assignee (at issue)
Ashland Chemical, 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.