Granted Patent
Utility
US 5,232,869 · App. 07/920,735
Metal deposition
Inventors:
Dario M. Frigo, Antonius W. Gal
Patented Case
View Patent ↗
Granted: Aug 3, 1993
Filed: Jul 28, 1992
Inventors
Dario M. Frigo
Antonius W. Gal
Assignee (at issue)
Shell Research 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.