Patents by Inventor Anthony R. Calabrese

Anthony R. Calabrese 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).

  • Weatherseal apparatus for double hung windows
    Patent number: 5111616
    Abstract: A weatherproof sealing apparatus (10) to seal the opening between upper (200) and lower (100) window sashes in the open position; wherein, the sealing apparatus (10) includes a support member (13) having a generally cruciform cross-section and a resilient sealing block (20) attached to, and projecting outwardly from, the support member (13) to compressively engage the space between the upper (200) and lower (100) window sashes.
    Type: Grant
    Filed: July 10, 1991
    Date of Patent: May 12, 1992
    Inventor: Anthony R. Calabrese