Granted Patent
Utility
US 4,697,995 · App. 06/860,866
Rotary positive displacement fuel pump with purge port
Inventor:
Charles H. Tuckey
Patented Case
View Patent ↗
Granted: Oct 6, 1987
Filed: May 8, 1986
Inventor
Charles H. Tuckey
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.