Granted Patent
Utility
US 5,817,063 · App. 08/903,147
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Inventor:
Christopher Stratton Turnbull
Patented Case
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Granted: Oct 6, 1998
Filed: Jul 30, 1997
Inventor
Christopher Stratton Turnbull
Assignee (at issue)
Smiths Industries PLC
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.