Patents by Inventor Samuel A. Nehra

Samuel A. Nehra 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).

  • Aqueous nitrocellulose compositions
    Patent number: 5670141
    Abstract: The present invention comprises aqueous cellulose solutions and methods of their making. The solutions of the invention provide coatings and can be employed as nail coatings, protective coatings and non-wax polishes.
    Type: Grant
    Filed: March 28, 1995
    Date of Patent: September 23, 1997
    Assignee: Agri-Film, Inc.
    Inventor: Samuel A. Nehra
  • Aqueous nitrocellulose compositions
    Patent number: 5284885
    Abstract: The present invention comprises aqueous nitrocellulose compositions and methods of their making. The compositions of the invention provide coatings and can be employed as nail coatings, protective coatings and non-wax polishes.
    Type: Grant
    Filed: September 29, 1992
    Date of Patent: February 8, 1994
    Assignee: Agri-Film, Inc.
    Inventor: Samuel A. Nehra
  • Plating method and structure
    Patent number: 4296181
    Abstract: A plated member and method of producing the member. The plated member includes a chrome plating over a tin zinc sprayed coating on a prepared surface. The member is produced by acid stripping, cleaning, baking and re-cleaning the member to prepare the surface thereof, subsequently spray coating the prepared surface with a tin zinc material, abrading the surface of the tin zinc coated member to the desired form, and plating the cleaned, coated and abraded surface with two copper, two nickel and one chromium layers.
    Type: Grant
    Filed: January 16, 1980
    Date of Patent: October 20, 1981
    Inventor: Samuel A. Nehra