Granted Patent
Utility
US 6,121,439 · App. 09/128,632
Waterborne coatings with cationically modified associative ethers
Inventor:
Gijsbert Kroon
Patented Case
View Patent ↗
Granted: Sep 19, 2000
Filed: Jul 27, 1998
Inventor
Gijsbert Kroon
Assignee (at issue)
HERCULES LLC
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.