Granted Patent
Utility
US 5,723,047 · App. 08/734,850
Compressible filter element peripherally sealed by a settable material
Inventor:
Christopher Stratton Turnbull
Patented Case
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Granted: Mar 3, 1998
Filed: Oct 23, 1996
Inventor
Christopher Stratton Turnbull
Assignee (at issue)
Smiths Industries Public Limited Company
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.