Patents by Inventor Elsie Crawford

Elsie Crawford 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).

  • Modular post and beam joint
    Patent number: 3966337
    Abstract: A modular post and beam joint includes slidably and tightly interfitting transverse beam members and primary and secondary post members. The latter define slots receiving the interfitting transverse beam members, as well as fingers which project endwise oppositely at the four corners defined by the transverse beam members.
    Type: Grant
    Filed: April 18, 1975
    Date of Patent: June 29, 1976
    Inventor: Elsie Crawford