Patents by Inventor Alfred C. DeRosa

Alfred C. DeRosa 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).

  • Two piece interchangeable button
    Patent number: 4471510
    Abstract: A two piece garment button having a base that is sewn to the garment and an interchangeable button head having a key that is slidably received in the base and locked therein to form an assembly capable of being passed through a buttonhole and thus closing the garment.
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: September 18, 1984
    Inventor: Alfred C. DeRosa
  • Button
    Patent number: D288185
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: February 10, 1987
    Inventor: Alfred C. Derosa