Granted Patent
Utility
US 5,354,829 · App. 07/906,960
Silylated polyamine polymers and a method of treating fibers
Inventors:
Robert Swisher, Richard P. Beaver, Robert G. Briody, Louis J. Nehmsmann
Patented Case
View Patent ↗
Granted: Oct 11, 1994
Filed: Jun 30, 1992
Inventors
Robert Swisher
Richard P. Beaver
Robert G. Briody
Louis J. Nehmsmann
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.