Granted Patent
Utility
US 6,607,365 · App. 09/383,652
Vacuum pump and vacuum apparatus
Inventors:
Takashi Kabasawa, Takashi Okada, Manabu Nonaka
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: Aug 26, 1999
Inventors
Takashi Kabasawa
Takashi Okada
Manabu Nonaka
Assignee (at issue)
Seiko Seiki Kabushiki Kaisha
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.