Granted Patent
Utility
US 5,322,907 · App. 07/856,240
Hardeners for powder coating compositions based on polyester resins
Inventors:
Jacques-Alain Cotting, Philippe-Guilhaume Gottis
Patented Case
View Patent ↗
Granted: Jun 21, 1994
Filed: Mar 25, 1992
Inventors
Jacques-Alain Cotting
Philippe-Guilhaume Gottis
Assignee (at issue)
Ciba-Geigy
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.