Granted Patent
Utility
US 6,090,881 · App. 08/834,780
Aqueous secondary amine functional acrylic polymer
Inventors:
Suryya K. Das, Soner Kilic
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: Apr 3, 1997
Inventors
Suryya K. Das
Soner Kilic
Assignee (at issue)
PPG Industries Ohio, 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.