Granted Patent
Utility
US 5,166,272 · App. 07/502,954
Emulsion polymers and coating compositions prepared therefrom
Inventors:
Steven John Burks, Karl F. Schimmel, Suryya K. Das, Mary Ellen Rosenberger, James A. Claar, Anthony C. Palermo, Henry H. Crum, III
Patented Case
View Patent ↗
Granted: Nov 24, 1992
Filed: Apr 2, 1990
Inventors
Steven John Burks
Karl F. Schimmel
Suryya K. Das
Mary Ellen Rosenberger
James A. Claar
Anthony C. Palermo
Henry H. Crum, III
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.