Patents by Inventor Reginald D. Littlefield

Reginald D. Littlefield 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).

  • Construction module
    Patent number: 4215766
    Abstract: A construction module which when combined with other identical modules may be used to form ladders, wall or ceiling supports, etc. Each module overlaps on each side at three points with two other modules and a single connecting means may be inserted in the area of overlap to connect the modules together. The modules may be molded from plastic so that the construction assembly is water resistant and non-conducting.
    Type: Grant
    Filed: December 22, 1978
    Date of Patent: August 5, 1980
    Assignee: Supreme Aluminum Industries, Ltd.
    Inventors: Reginald D. Littlefield, Stuart Shinn