Patents by Inventor Gary M. DeMasi

Gary M. DeMasi 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).

  • Tennis racquet with replaceable playing surface
    Patent number: 8192308
    Abstract: A tennis racquet with a replaceable playing surface includes a frame, a cartridge, and a cartridge-lock with at least one key. The frame defines a cartridge support groove, a front upper half-oval bridge and a back upper half-oval bridge. Each bridge includes a head-guard. The front bridge with its head-guard and the back bridge with its head-guard define a planar passage way between the bridges. The cartridge includes a rim threaded with a string. The string defines a playing surface. The cartridge is shaped for removable snug fit in the support groove and in the planar passageway, such that when a replacement cartridge is snug within the frame, and when the at least one key is entered into the at least one key-aperture, the replacement cartridge is locked to the frame.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: June 5, 2012
    Inventor: Gary M. DeMasi
  • TENNIS RACQUET WITH REPLACEABLE PLAYING SURFACE
    Publication number: 20110287876
    Abstract: A tennis racquet with a replaceable playing surface includes a frame, a cartridge, and a cartridge-lock with at least one key. The frame defines a cartridge support groove, a front upper half-oval bridge and a back upper half-oval bridge. Each bridge includes a head-guard. The front bridge with its head-guard and the back bridge with its head-guard define a planar passage way between the bridges. The cartridge includes a rim threaded with a string. The string defines a playing surface. The cartridge is shaped for removable snug fit in the support groove and in the planar passageway, such that when a replacement cartridge is snug within the frame, and when the at least one key is entered into the at least one key-aperture, the replacement cartridge is locked to the frame.
    Type: Application
    Filed: December 22, 2010
    Publication date: November 24, 2011
    Inventor: Gary M. DeMasi
  • Tennis racquet with replaceable playing surface
    Patent number: RE45866
    Abstract: A tennis racquet with a replaceable playing surface includes a frame, a cartridge, and a cartridge-lock with at least one key. The frame defines a cartridge support groove, a front upper half-oval bridge and a back upper half-oval bridge. Each bridge includes a head-guard. The front bridge with its head-guard and the back bridge with its head-guard define a planar passage way between the bridges. The cartridge includes a rim threaded with a string. The string defines a playing surface. The cartridge is shaped for removable snug fit in the support groove and in the planar passageway, such that when a replacement cartridge is snug within the frame, and when the at least one key is entered into the at least one key-aperture, the replacement cartridge is locked to the frame.
    Type: Grant
    Filed: May 31, 2014
    Date of Patent: January 26, 2016
    Inventor: Gary M. DeMasi