Granted Patent
Utility
US 6,698,719 · App. 10/185,479
Seal arrangement for a vacuum valve
Inventor:
Friedrich Geiser
Patented Case
View Patent ↗
Granted: Mar 2, 2004
Filed: Jun 26, 2002
Inventor
Friedrich Geiser
Assignee (at issue)
VAT Holding AG
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.