Granted Patent
Utility
US 5,492,977 · App. 08/360,498
Preparation of amino terminated polyacrylics
Inventors:
Bradley Beach, Anna Marie Pearson, Jing Sun
Patented Case
View Patent ↗
Granted: Feb 20, 1996
Filed: Dec 21, 1994
Inventors
Bradley Beach
Anna Marie Pearson
Jing Sun
Assignee (at issue)
Lexmark International, 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.