Granted Patent
Utility
US 6,652,939 · App. 09/951,091
Low permeation nylon tube with aluminum barrier layer
Inventors:
Christopher W. Smith, Jerry Shifman, Jeremy Duke
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Sep 13, 2001
Inventors
Christopher W. Smith
Jerry Shifman
Jeremy Duke
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.