Granted Patent
Utility
US 5,972,450 · App. 08/806,232
Metal tubing coated with multiple layers of polymeric materials
Inventors:
Henry S. Hsich, Dennis C. Soles
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Feb 24, 1997
Inventors
Henry S. Hsich
Dennis C. Soles
Assignee (at issue)
Bundy Corporation
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.