Patents by Inventor Sidney W. Doak

Sidney W. Doak has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Tape measure scoring attachment
    Patent number: 6041513
    Abstract: A self-adhesive polymer anchor for clasping a scoring device such as a pencil lead or scratcher to the housing of a conventional tape measure. The marker is secured in the anchor in a concave recess and oriented such that the marking device is in precise alignment with the tape at a given distance from the point the tape extends from the housing.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: March 28, 2000
    Inventor: Sidney W. Doak
  • Tape measure scoring attachment
    Patent number: D373734
    Type: Grant
    Filed: August 11, 1995
    Date of Patent: September 17, 1996
    Inventor: Sidney W. Doak