Granted Patent
Utility
US 4,445,997 · App. 06/523,969
Rotatable sputtering apparatus
Inventor:
Harold E. McKelvey
Patented Case
View Patent ↗
Granted: May 1, 1984
Filed: Aug 17, 1983
Inventor
Harold E. McKelvey
Assignee (at issue)
Shatterproof Glass Corp.
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.