Granted Patent
Utility
US 5,506,325 · App. 08/356,808
Coating composition having improved rheology control and copolymer, mixture and process therefor
Inventors:
Shanti Swarup, James R. Christenson, B. Keith Johnston, James B. O'Dwyer, Edward R. Coleridge, Andrew T. Carroll
Patented Case
View Patent ↗
Granted: Apr 9, 1996
Filed: Dec 15, 1994
Inventors
Shanti Swarup
James R. Christenson
B. Keith Johnston
James B. O'Dwyer
Edward R. Coleridge
Andrew T. Carroll
Assignee (at issue)
PPG Industries, 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.