Patents by Inventor Albert Bierman

Albert Bierman 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: 4709502
    Abstract: An electric roach trap comprising a housing with three spaced apart conductors composed of a water pan conductor, a floor and wall conductor and a bait holder conductor. These conductors are connected to an outside power source so that when a roach enters the trap and contacts simultaneously two of these spaced apart conductors, the roach will be electrocuted. The electric roach trap of this invention is safe to handle, easy to clean, has shock proof protection for humans and pets, and has special features such as a window to see into the trap to see if it contains dead roaches and should be cleaned and an indicator light to tell when the trap has power and is operational when it is located in a dark area. An additional feature is that the trap is shock proof in that electrical current to the trap is terminated when the trap is opened by removing the top housing from the bottom housing.
    Type: Grant
    Filed: September 13, 1985
    Date of Patent: December 1, 1987
    Inventor: Albert Bierman