Patents by Inventor Alexander S. O. MacDougall

Alexander S. O. MacDougall 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).

  • Golf club head
    Patent number: D257869
    Type: Grant
    Filed: December 13, 1977
    Date of Patent: January 13, 1981
    Inventor: Alexander S. O. MacDougall
  • Golf club head
    Patent number: D257870
    Type: Grant
    Filed: July 20, 1978
    Date of Patent: January 13, 1981
    Inventor: Alexander S. O. MacDougall
  • Golf club head
    Patent number: D257871
    Type: Grant
    Filed: July 20, 1978
    Date of Patent: January 13, 1981
    Inventor: Alexander S. O. MacDougall
  • Golf club head
    Patent number: D257872
    Type: Grant
    Filed: July 20, 1978
    Date of Patent: January 13, 1981
    Inventor: Alexander S. O. MacDougall
  • Golf club head
    Patent number: D257873
    Type: Grant
    Filed: July 20, 1978
    Date of Patent: January 13, 1981
    Inventor: Alexander S. O. MacDougall
  • Golf club grip
    Patent number: D258168
    Type: Grant
    Filed: February 13, 1979
    Date of Patent: February 3, 1981
    Inventor: Alexander S. O. MacDougall
  • Marine ventilator fitting
    Patent number: D271682
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: December 6, 1983
    Inventor: Alexander S. O. MacDougall
  • Putter head with bowed shaft
    Patent number: D272460
    Type: Grant
    Filed: October 16, 1981
    Date of Patent: January 31, 1984
    Inventor: Alexander S. O. MacDougall
  • Putter head
    Patent number: D277692
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: February 19, 1985
    Inventor: Alexander S. O. MacDougall