Patents by Inventor Ramon M. Canals

Ramon M. Canals 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).

  • Selectively interlocked double security doors
    Patent number: 4302907
    Abstract: A personal security door arrangement constituted by the juxtaposition of two doors, which may be coupled together at will, in one same frame in an opening, the outer door affording complete visibility and, possibly, the passage of small objects, while the inner door is conventional. Said doors are hingedly mounted to the frame on the same side, rotate in the same direction and have interrelated lock arrangements.
    Type: Grant
    Filed: October 5, 1979
    Date of Patent: December 1, 1981
    Inventors: Jose M. Canals, Ramon M. Canals