Granted Patent
Utility
US 6,609,501 · App. 09/833,375
Fuel pressure regulation system
Inventors:
Kirk D. Doane, John D. Zmierski
Patented Case
View Patent ↗
Granted: Aug 26, 2003
Filed: Apr 12, 2001
Inventors
Kirk D. Doane
John D. Zmierski
Assignee (at issue)
WALBRO LLC
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.