Granted Patent
Utility
US 5,183,842 · App. 07/872,743
Method of producing an organic, corrosion-resistant surface coating
Inventors:
Robert M. O'Neil, Emyr Phillips, Robert C. Wasson
Patented Case
View Patent ↗
Granted: Feb 2, 1993
Filed: Apr 22, 1992
Inventors
Robert M. O'Neil
Emyr Phillips
Robert C. Wasson
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.