Granted Patent
Utility
US 5,993,567 · App. 09/200,526
Compositions and processes for forming a solid adherent protective coating on metal surfaces
Inventor:
Shawn E. Dolan
Patented Case
View Patent ↗
Granted: Nov 30, 1999
Filed: Nov 25, 1998
Inventor
Shawn E. Dolan
Assignee (at issue)
Henkel Limited
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.