Granted Patent
Utility
US 5,688,389 · App. 08/485,214
Method and apparatus for thin film coating an article
Inventors:
Erik J. Bjornard, Eric W. Kurman, Debra M. Steffenhagen, Clifford L. Taylor
Patented Case
View Patent ↗
Granted: Nov 18, 1997
Filed: Jun 7, 1995
Inventors
Erik J. Bjornard
Eric W. Kurman
Debra M. Steffenhagen
Clifford L. Taylor
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.