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:
Jan. 01, 2013
Filed:
Feb. 18, 2010
Raffi Der Manuelian, Rochester Hills, MI (US);
Kenneth J. Kalvelage, Rochester Hills, MI (US);
Timothy E. Mccarthy, Grand Blanc, MI (US);
Raffi Der Manuelian, Rochester Hills, MI (US);
Kenneth J. Kalvelage, Rochester Hills, MI (US);
Timothy E. McCarthy, Grand Blanc, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A vehicle fuel emissions system includes a fuel tank, a tank pressure sensor indicating a pressure differential between the tank and a port communicating with the atmosphere, a pump for selectively producing vacuum in the tank, and a passage connecting the pump and a pressure sensor air reference port external to the system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile