Patents by Inventor Martin A. J. Martens

Martin A. J. Martens 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).

  • Patent number: 3971269
    Abstract: A fastening clip for securing articles together, the clip including releasably connected male and female components. The male component comprises a pin and the female component comprises a retainer for releasably clamping the pin. When joined, the pin cannot be separated from the retainer except by a specially formed tool which is insertable in the retainer. Manipulation of the tool serves to condition the retainer for removal of the pin. In a modified form of the invention, the retainer is of magnetic material, and an actuating tool including an electromagnet is employed to actuate the retainer and permit removal of the pin.
    Type: Grant
    Filed: March 19, 1974
    Date of Patent: July 27, 1976
    Assignee: I. D. Engineering, Inc.
    Inventor: Martin A. J. Martens