Patents by Inventor James J. Ladue

James J. Ladue 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).

  • Data processor enclosure with tambour door
    Patent number: 4235494
    Abstract: An enclosure for data processing apparatus has a tambour door that slides in a track to partially open the front of the processor enclosure. The tambour door retracts completely into a canister that has a U shaped track that carries the tambour door. The canister is hinged along one edge of the processor frame so that the canister can be swung out to permit access completely along the front of the enclosure with a minimum of interference from the door and canister and with a minimum intrusion into an aisle alongside the processor.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: November 25, 1980
    Assignee: International Business Machines Corporation
    Inventors: Richard C. Chu, James J. LaDue, Clifford I. Shelkofsky
  • Analytical instrument system
    Patent number: D248098
    Type: Grant
    Filed: October 2, 1975
    Date of Patent: June 6, 1978
    Assignee: International Business Machines Corporation
    Inventors: Eugene N. Giancarlo, James J. Ladue
  • Data processing system
    Patent number: D267490
    Type: Grant
    Filed: August 15, 1980
    Date of Patent: January 4, 1983
    Assignee: International Business Machines Corp.
    Inventors: James J. LaDue, Clifford I. Shelkofsky
  • Data processing system
    Patent number: D273866
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: May 15, 1984
    Assignee: International Business Machines Corporation
    Inventors: James J. LaDue, Clifford I. Shelkofsky