Granted Patent
Utility
US 5,292,417 · App. 07/865,116
Method for reactive sputter coating at least one article
Inventor:
Eduard Kugler
Patented Case
View Patent ↗
Granted: Mar 8, 1994
Filed: Apr 8, 1992
Inventor
Eduard Kugler
Assignee (at issue)
Balzers Aktiengesellschaft
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.