Granted Patent
Utility
US 5,482,430 · App. 08/309,226
High performance turbomolecular vacuum pumps
Inventor:
Marsbed Hablanian
Patented Case
View Patent ↗
Granted: Jan 9, 1996
Filed: Sep 20, 1994
Inventor
Marsbed Hablanian
Assignee (at issue)
Varian, 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.