Patents by Inventor Lewis C. Hartman

Lewis C. Hartman 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).

  • Step flashing strip
    Patent number: 5337526
    Abstract: A step flashing strip having a plurality of flashing segments, secured to another segment in spaced overlapping relationship by a spacer to allow for the insertion of a shingle into the overlapping region between the segments, allows for a simplified, time saving method of providing a water shedding termination of an imbricating roof at its intersection with another surface.
    Type: Grant
    Filed: October 1, 1992
    Date of Patent: August 16, 1994
    Inventor: Lewis C. Hartman