Granted Patent
Utility
US 6,822,012 · App. 09/693,366
Peelable polymeric coating composition
Inventors:
Richard J. Baumgart, Michael A. Dituro, Frances E. Lockwood, Zhiqiang Zhang, Daniel J. Dotson
Patented Case
View Patent ↗
Granted: Nov 23, 2004
Filed: Oct 20, 2000
Inventors
Richard J. Baumgart
Michael A. Dituro
Frances E. Lockwood
Zhiqiang Zhang
Daniel J. Dotson
Assignee (at issue)
Ashland, 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.