The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 2026
Filed:
Nov. 30, 2023
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventor:
Aed Dudar, Canton, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 25/08 (2006.01);
U.S. Cl.
CPC ...
F02M 25/0836 (2013.01); F02M 25/0854 (2013.01);
Abstract
Methods and systems are presented for diagnosing operation of an evaporative emissions system. The methods and systems include two fuel filler neck valves to control flow of fuel and fuel vapors into and out of a fuel filler neck tube. The two fuel filler neck valves may be biased closed with return springs.