Patent ID: 7063625

Claim:
A putting aid for use with a putting hole having opposite margins and a golf club having a golf club shaft, the putting aid comprising: an elongated body having a longitudinal axis and a first end and a second end; a level mounted to the elongated body, the level having a longitudinal level axis parallel to, or coincident with, the longitudinal body axis and a bubble indicator for indicating orientation of the longitudinal body and level axes with respect to a level orientation; an attachment mechanism positioned on the elongated body for detachably holding the golf club shaft of the golf club in a position wherein the club shaft is perpendicular to the longitudinal axis of the elongated body, the golf club shaft being completely removable from the attachment mechanism; a plurality of calibrations on the elongated body, the plurality of calibrations being spaced apart from one another a plurality of predetermined distances corresponding to the distance from a hole when two of the calibrations are lined up with the opposite margins of the hole; the attachment mechanism comprising a notch in the elongated member, the notch including first and second opposite side walls positioned to embrace the golf club shaft there between in a direction that is perpendicular to the longitudinal axis of the elongated member, a first compressible member and a second compressible member being mounted to the first and second opposite side walls respectively for compressing and frictionally engaging the golf club shaft there between in response to the golf club shaft being fitted within the notch; the elongated body including an elongated calibration portion having a calibration portion axis parallel to the longitudinal level axis, the plurality of calibrations being located on the elongated calibration portion; the viewing opening being between the level and the elongated calibration portion.