Catamaran with swingable mast and hulls
Patent 4102287 Issued on July 25, 1978. Estimated Expiration Date: 
April 5, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 5, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 457323 3137263 3142282 3179078 3656445 3839979 3841251 Surface craft Patent #: 3996874 InventorApplicationNo. 05/784667 filed on 04/05/1977US Classes:114/39.23, With means for uprighting capsized watercraft114/91SwingingExaminersPrimary: Blix, Trygve M.Assistant: Basinger, Sherman D. Attorney, Agent or FirmInternational ClassesB63B 43/00 (20060101)B63B 1/14 (20060101) B63B 1/00 (20060101) B63B 15/02 (20060101) B63B 15/00 (20060101) AbstractA multiple hull craft such as a catamaran is provided having outrigger hulls which can be swung to either of two positions 180° apart and locked in either position. The mast is swingable about a center structure through an angle of 180° and is secured at either extreme. These features allow one to sail a boat after it has capsized as is hereinafter described in detail. | |
