Patents by Inventor Michael J. A. Lawes

Michael J. A. Lawes 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).

  • Loose leaf binders
    Patent number: 4243459
    Abstract: The invention relates to loose leaf binders for holding periodicals and the object of the invention is to provide a loose leaf binder having a curved back and no rivets visible from the back.For this purpose, the paper-retaining means are fitted to an inner flat spine which is connected to the covers by means of welds extending along the hinge lines between the covers and the outer spine. The covers consist of boards enclosed in flexible polyvinyl chloride sheeting and the outer spine is reinforced with a semi-rigid polyvinyl chloride strip. The inner spine consists of a strip of board enclosed in flexible polyvinyl chloride sheeting, the width of the sheeting being greater than the width of the board strip so that flexible hinges are produced on each side of the strip. When the inner spine is assembled with the covers and outer spine, the welds are produced along the hinge lines so that there is no tendency to tear out the inner spine when the covers are opened and closed.
    Type: Grant
    Filed: January 10, 1979
    Date of Patent: January 6, 1981
    Inventor: Michael J. A. Lawes
  • Loose leaf binders
    Patent number: 4138143
    Abstract: The invention relates to loose leaf binders for holding periodicals and the object of the invention is to provide a loose leaf binder having a curved back and no rivets visible from the back.For this purpose, the paper-retaining means are fitted to an inner flat spine which is connected to the covers by means of welds extending along the hinge lines between the covers and the outer spine. The covers consist of boards enclosed in flexible polyvinyl chloride sheeting and the outer spine is reinforced with a semi-rigid polyvinyl chloride strip. The inner spine consists of a strip of board enclosed in flexible polyvinyl chloride sheeting, the width of the sheeting being greater than the width of the board strip so that flexible hinges are produced on each side of the strip. When the inner spine is assembled with the covers and outer spine, the welds are produced along the hinge lines so that there is no tendency to tear out the inner spine when the covers are opened and closed.
    Type: Grant
    Filed: May 31, 1974
    Date of Patent: February 6, 1979
    Inventor: Michael J. A. Lawes