Patents by Inventor Michael J. Pratt

Michael J. Pratt 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).

  • Radiation sensitive polymeric diazonium salt and methods of making the polymeric diazonium salt
    Patent number: 4902601
    Abstract: Radiation sensitive material suitable for the production of radiation sensitive plates for lithographic printing plate manufacture is based on a polymer including a plurality of structural units represented by the formula: ##STR1## in which, R represents H or CH.sub.3 ; each R.sub.1, which may be the same or different represents H or alkyl; R.sub.2 represents a single bond or a substituted or unsubstituted divalent radical; Ar represents a substituted or unsubstituted divalent radical derived from an aromatic or heteroaromatic compound; X represents O, S or NH; A represents an anion; Y represents a carbonyl oxy or aromatic radical; and n is an integer equal to or greater than 1.
    Type: Grant
    Filed: January 19, 1989
    Date of Patent: February 20, 1990
    Assignee: Vickers PLC
    Inventors: Rodney M. Potts, Michael J. Pratt, Keith M. Fletcher
  • Utility bag
    Patent number: 4817802
    Abstract: A utility bag which is generally rectangular in shape and sized to fit into an athletic locker or under the seat of an airplane.
    Type: Grant
    Filed: June 17, 1988
    Date of Patent: April 4, 1989
    Assignee: Ogio International, Inc.
    Inventor: Michael J. Pratt
  • Wristband and integral back of hand pad
    Patent number: 4809366
    Abstract: A combination wristband and back of the hand flap or pad for absorbing and wiping perspiration from the forehead and face of the wearer comprises a circumferential wristband made of an absorbent, fabric material which is elastic and stretchable in a circumferential direction. A flap or pad extends from one end of the wristband, with the flap or pad being an integrally formed extension of the wristband and made of the same absorbent, stretchable, fabric material as the wristband. The flap or pad lies substantially flatwise against the back of one's hand when the wristband is being worn.
    Type: Grant
    Filed: January 4, 1988
    Date of Patent: March 7, 1989
    Assignee: Ogio International, Inc.
    Inventor: Michael J. Pratt
  • Utility bag
    Patent number: 4752008
    Abstract: A utility bag which is generally rectangular in shape and sized to fit into an athletic locker or under the seat of an airplane.
    Type: Grant
    Filed: August 14, 1987
    Date of Patent: June 21, 1988
    Assignee: Ogio International, Inc.
    Inventor: Michael J. Pratt
  • Collapsible cup holder
    Patent number: 4530480
    Abstract: The present invention is directed to a novel cup holder adapted for permanent securement to an appropriate supporting surface. The apparatus of the present invention is advantageously adapted for movement between a first closed position for storage, and a second open position for use in holding a suitable container. In a presently preferred embodiment of the invention, a housing is provided that is adapted for securement to the supporting surface. Respective support and retaining assemblies are provided to support the weight of the container and to maintain the container in the desired position. Both of said assemblies are preferably substantially U-shaped in appearance, and are comprised of a plurality of hingedly interconnected components so that the assemblies may be collapsed in a bellows-like manner for storage.
    Type: Grant
    Filed: April 11, 1983
    Date of Patent: July 23, 1985
    Inventor: Michael J. Pratt