Patents by Inventor Charles L. Galbraith

Charles L. Galbraith 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).

  • Visual communications system
    Patent number: 4076398
    Abstract: A multiple screen projection system including translucent multiple projection-receiving surfaces is described. The projection-receiving surfaces are adapted to receive a distortion-free image projected from front or rear on said surfaces from a point remote from an observer. A method of preparing a series of two-dimensional images which, when reproduced and projected onto a three-dimensional screen, will maintain focus and precise registration without distortion is also described.
    Type: Grant
    Filed: August 26, 1975
    Date of Patent: February 28, 1978
    Assignee: Ortho Pharmaceutical Corporation
    Inventor: Charles L. Galbraith