Granted Patent
Utility
US 6,589,617 · App. 09/370,424
Metal tubing coated with multiple layers of polymeric materials
Inventors:
Henry S. Hsich, Dennis C. Soles
Patented Case
View Patent ↗
Granted: Jul 8, 2003
Filed: Aug 9, 1999
Inventors
Henry S. Hsich
Dennis C. Soles
Assignee (at issue)
TI GROUP AUTOMOTIVE SYSTEMS, 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.