Patents by Inventor Rao V. Angara

Rao V. Angara 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: 4872277
    Abstract: There is disclosed a calendar assembly having a first chamber containing a display mechanism for at least fourteen separate calendar year systems, the first chamber mechanically coupled to a second chamber comprising an index mechanism which includes indices for establishing the relative position between the index mechanism and the calendar year system in order to locate a calendar year system for any pre-selected calendar year.
    Type: Grant
    Filed: August 18, 1987
    Date of Patent: October 10, 1989
    Inventor: Rao V. Angara