Granted Patent
Utility
US 6,591,871 · App. 09/951,181
Low permeation polybutylene terephthalate and polybutylene naphthalate fuel and vapor tubes
Inventors:
Christopher W. Smith, Alan Edmonson, Jeremy Duke, Jerry Shifman, Jeffrey A. Swane
Patented Case
View Patent ↗
Granted: Jul 15, 2003
Filed: Sep 13, 2001
Inventors
Christopher W. Smith
Alan Edmonson
Jeremy Duke
Jerry Shifman
Jeffrey A. Swane
Assignee (at issue)
Dayco Products, 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.