Tools – Wrench – screwdriver – or driver therefor – Spanner
Reexamination Certificate
2006-03-21
2006-03-21
Wilson, Lee D. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Spanner
C081S052000
Reexamination Certificate
active
07013764
ABSTRACT:
A device for extracting a drain assembly from a basin, or for extracting joined pipes where there is not an adequate surface to attach a device to disengage the pipes. The device has a shaft with two or more insert pins, a top ring encasing the shaft, a bottom ring encasing the shaft, two or more dowel pins, and two or more wing segments.
REFERENCES:
patent: 6058813 (2000-05-01), Bryant et al.
patent: 6360636 (2002-03-01), Elftmann
patent: 6474199 (2002-11-01), Szasz
patent: 6564679 (2003-05-01), Llamas et al.
patent: 6715385 (2004-04-01), Wu
patent: 6895838 (2005-05-01), Stahnke
patent: 2003/0041701 (2003-03-01), Wang Wu
Betty Jean Sutherland
Sheldon & Mark
Wilson Lee D.
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