Granted Patent
Utility
US 5,948,178 · App. 08/454,301
Composition and process for forming a solid adherent protective coating on metal surfaces
Inventors:
Shawn E. Dolan, Lawrence R. Carlson, John R. Pierce
Patented Case
View Patent ↗
Granted: Sep 7, 1999
Filed: Jun 16, 1995
Inventors
Shawn E. Dolan
Lawrence R. Carlson
John R. Pierce
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.