Granted Patent
Utility
US 5,498,125 · App. 08/467,500
High performance turbomolecular vacuum pumps
Inventor:
Marsbed Hablanian
Patented Case
View Patent ↗
Granted: Mar 12, 1996
Filed: Jun 6, 1995
Inventor
Marsbed Hablanian
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.