Patents by Inventor Mark Gregory Hartstone

Mark Gregory Hartstone 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).

  • Storage device
    Patent number: 6648150
    Abstract: A storage device comprising a base, the base including at least one elongated member, the elongated member or members being arranged to engage, in use, a holding device in the form of an element having a peripheral slot able to engage the elongated member or members.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: November 18, 2003
    Assignee: The CD Storage Company Limited
    Inventor: Mark Gregory Hartstone
  • Storage device
    Publication number: 20020027112
    Abstract: A storage device comprising a base, the base including at least one elongated member, the elongated member or members being arranged to engage, in use, a holding device in the form of an element having a peripheral slot able to engage the elongated member or members.
    Type: Application
    Filed: August 1, 2001
    Publication date: March 7, 2002
    Inventor: Mark Gregory Hartstone
  • Disc storage arrangement
    Patent number: 5884764
    Abstract: A disc storage arrangement includes an enclosure in which a number of substantially flat envelopes for containing discs can be mounted. The envelopes include at least one formation in an edge portion of resiliently deformable material and which formation is arranged to be clipped onto corresponding mounting parts provided in the enclosure.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: March 23, 1999
    Inventor: Mark Gregory Hartstone
  • Holding device
    Patent number: D441589
    Type: Grant
    Filed: September 1, 1999
    Date of Patent: May 8, 2001
    Assignee: The CD Storage Company Limited
    Inventor: Mark Gregory Hartstone
  • Holding device
    Patent number: D441590
    Type: Grant
    Filed: September 1, 1999
    Date of Patent: May 8, 2001
    Assignee: The CD Storage Company Limited
    Inventor: Mark Gregory Hartstone