Patents by Inventor Michael J. Graft, Jr.

Michael J. Graft, Jr. 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).

  • Roof vent
    Patent number: 6302787
    Abstract: A roof vent for obstructing snow from entry into a vented space of a structure or dwelling. The vent has a cover, support, and base. The base is adapted to form a passageway which connects the vented space to the environment. A barrier is also provided which is located within the passageway. The barrier permits air movement but causes snow to accumulate thereon which prevents accumulation in the vented space.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: October 16, 2001
    Inventor: Michael J. Graft, Jr.