Patents by Inventor Charles H. Lawrence

Charles H. Lawrence 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).

  • Inflatable Swim Fin Apparatus
    Publication number: 20150367177
    Abstract: An inflatable swim fin apparatus includes a foot portion having a lower wall with a peripheral edge and having an upper wall extending upwardly from the peripheral edge of the lower wall, the lower wall and the upper wall defining a foot pocket and a rear opening allowing a user's foot to be received into the foot pocket. The swim fin apparatus includes a fin blade portion coupled to the upper wall of the foot portion, the fin blade portion including a bladder defining an interior space configured to hold a volume of air.
    Type: Application
    Filed: June 20, 2014
    Publication date: December 24, 2015
    Inventor: Charles H. Lawrence
  • Inflatable swim fin apparatus
    Patent number: 9211441
    Abstract: An inflatable swim fin apparatus includes a foot portion having a lower wall with a peripheral edge and having an upper wall extending upwardly from the peripheral edge of the lower wall, the lower wall and the upper wall defining a foot pocket and a rear opening allowing a user's foot to be received into the foot pocket. The swim fin apparatus includes a fin blade portion coupled to the upper wall of the foot portion, the fin blade portion including a bladder defining an interior space configured to hold a volume of air.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: December 15, 2015
    Inventor: Charles H. Lawrence