Patents by Inventor John Douglas Longbottom

John Douglas Longbottom 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).

  • Overbed table with locking mechanism
    Patent number: 3976016
    Abstract: An overbed table such as used in a hospital, which is elevated manually by upward pressure and which has a wedging mechanism normally preventing lowering of the table. A release mechanism is operated to release the table for lowering.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: August 24, 1976
    Assignee: RCA Corporation
    Inventor: John Douglas Longbottom