Granted Patent
Utility
US 6,204,342 · App. 08/919,086
Thickening active H-containing resin with polycarbodiimide
Inventor:
Hildeberto Nava
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Aug 27, 1997
Inventor
Hildeberto Nava
Assignee (at issue)
Reichhold Chemicals, 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.