Patents by Inventor Benjamin D. Pollack

Benjamin D. Pollack 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).

  • Wrist compass and transit
    Patent number: 4158260
    Abstract: A wrist compass is formed with a base member having straps at each side for strapping to a user's wrist and with a detachable compass body having complementary interengaging surfaces for removably securing the compass body to the base member. The base member also is provided with folding lens and sight line elements to overlie the attached compass face in a folded position and to be erected to a sighting position when desired. The lens and sight line elements are preferably formed entirely of transparent material so that the compass face is visible when the elements are folded thereover.
    Type: Grant
    Filed: May 2, 1977
    Date of Patent: June 19, 1979
    Assignee: Benjamin D. Pollack
    Inventors: Richard T. Benger, Benjamin D. Pollack