Patents by Inventor Darrell Fish

Darrell Fish 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).

  • Smoke detector
    Patent number: D306409
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: March 6, 1990
    Assignee: Universal Security Instruments, Inc.
    Inventor: Darrell Fish
  • Stackable step stool
    Patent number: D360767
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: August 1, 1995
    Assignee: Curd Enterprizes, Inc.
    Inventors: Darrell Fish, Mechelle King