The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 09, 2000
Filed:
Jan. 12, 1999
Richard Vogel, Hanalei, HI (US);
Other;
Abstract
A surfboard having opposed side edges disposed symmetrically about a longitudinal centerline, the surfboard including a tail section, the side edges of the surfboard along said tail section defining a generally hourglass configuration with the contours of tail section side edges approximately hyperbolic curves. In one specific embodiment, the side edges of the tail section approximate the left- and right-hand branches of a hyperbola centered on an origin lying on said longitudinal centerline. According to another aspect of the invention, the surfboard includes a pair of side fins and a tail fin attached to the bottom surface of the board. The side fins are symmetrically disposed relative to the longitudinal centerline and are so oriented that the center planes of the side fins pass through the foci of the hyperbolic side edges of the tail section.