Granted Patent
Utility
US 6,716,147 · App. 10/462,427
Insulated sleeved roll
Inventors:
David Leslie Hinkle, Kenneth Royce Schisler
Patented Case
View Patent ↗
Granted: Apr 6, 2004
Filed: Jun 16, 2003
Inventors
David Leslie Hinkle
Kenneth Royce Schisler
Assignee (at issue)
PYROTEK, INC.
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.