Granted Patent
Utility
US 5,490,544 · App. 08/280,724
Method and apparatus for inhibiting air infiltration into fuel dispensing lines
Inventor:
Russell L. Broline
Patented Case
View Patent ↗
Granted: Feb 13, 1996
Filed: Jul 26, 1994
Inventor
Russell L. Broline
Assignee (at issue)
Marley Pump
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.