Patents by Inventor Sumner B. MacDonald

Sumner B. MacDonald 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).

  • Key holder
    Patent number: 5685185
    Abstract: A key holder for detachably holding a plurality of key rings with a member movable relative to a body to selectively uncover openings to key ring zones.
    Type: Grant
    Filed: April 30, 1996
    Date of Patent: November 11, 1997
    Inventor: Sumner B. MacDonald
  • Key holder
    Patent number: 5341662
    Abstract: A key holder in which two portions are connected for relative movement between a closed position therebetween and a widely opened position therebetween.
    Type: Grant
    Filed: October 15, 1993
    Date of Patent: August 30, 1994
    Inventor: Sumner B. MacDonald
  • Resilient clip
    Patent number: 4967453
    Abstract: A clip having a spring member held at its ends between the edges of a hole in a first wall member and a stop member attached to the first wall member, the clip having a second wall member that is spaced from the first wall member.
    Type: Grant
    Filed: May 1, 1989
    Date of Patent: November 6, 1990
    Inventor: Sumner B. MacDonald
  • Indicia device
    Patent number: 4891956
    Abstract: A jewelry charm including an outer portion having a rolled-over lip, a spring member resiliently mating with the rolled-over lip and an insert configured to fit within the outer portion, where the insert is placed within the outer portion and the spring is mated with the rolled-over lip to retain the insert in the outer portion.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: January 9, 1990
    Inventor: Sumner B. MacDonald
  • Key holder
    Patent number: D310306
    Type: Grant
    Filed: September 12, 1988
    Date of Patent: September 4, 1990
    Inventor: Sumner B. MacDonald
  • Key holder
    Patent number: D311275
    Type: Grant
    Filed: June 26, 1987
    Date of Patent: October 16, 1990
    Inventor: Sumner B. MacDonald
  • Knife key holder
    Patent number: D311642
    Type: Grant
    Filed: June 29, 1987
    Date of Patent: October 30, 1990
    Inventor: Sumner B. MacDonald
  • Knife key holder
    Patent number: D311643
    Type: Grant
    Filed: June 26, 1987
    Date of Patent: October 30, 1990
    Inventor: Sumner B. MacDonald
  • Key holder
    Patent number: D341940
    Type: Grant
    Filed: May 12, 1992
    Date of Patent: December 7, 1993
    Inventor: Sumner B. MacDonald
  • Key holder
    Patent number: D343952
    Type: Grant
    Filed: July 17, 1991
    Date of Patent: February 8, 1994
    Inventor: Sumner B. MacDonald