Patents by Inventor Ronald G. Krolczyk

Ronald G. Krolczyk 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).

  • Collapsible catamaran sailboat
    Patent number: 5042411
    Abstract: A collapsible catamaran sailboat has a trampoline and a frame. The frame comprises two spaced cross tubes each having two ends. The frame further comprises two longitudinal, spaced hulls and a mechanism for releasably attaching one end of each cross tube to one of the hulls and the other end of each cross tube to the other of the hulls. The catamaran sailboat further comprises a mechnism for attaching the trampoline to the frame.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: August 27, 1991
    Inventor: Ronald G. Krolczyk