Granted Patent
Utility
US 5,200,049 · App. 07/737,372
Cantilever mount for rotating cylindrical magnetrons
Inventors:
David E. Stevenson, Erik J. Bjornard, Geoffrey H. Humberstone
Patented Case
View Patent ↗
Granted: Apr 6, 1993
Filed: Jul 29, 1991
Inventors
David E. Stevenson
Erik J. Bjornard
Geoffrey H. Humberstone
Assignee (at issue)
Viratec Thin Films, Inc.
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.