Boat Building Forum

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Re: Pygmy Recessed Ckpt Patent
In Response To: Re: Pygmy Recessed Ckpt Patent ()

Just curious, but is this a US patent only or international?

Looking at the web page https://www.google.com/patents/US6779477 shows links to https://www.google.com/patents/CA2404042A1 which may be a Canadian version.

I had heard that CLC has tried to patent a few building and design techniques as well that we all use or have used.

The only patent I am aware CLC has is this: https://www.google.com/patents/US6142093 for their "Lap Stitch" method. This patent is quite specific on a technique to simulate lapstrake look with S&G techniques that aren't that I'm not aware of being widely used. There are glued-lap plywood boats that don't include the rabbet and assembly technique described in the patent.

BTW, I have a design patent for a kayak frame: https://www.google.com/patents/USD508011 It's a long story why I have it, but it shows that a patent isn't that hard to get, even when there is plenty of traditional prior art. I'm sure I would be very hard pressed to successfully defend this patent if it ever came to it, and a tiny change in design can side step the patent.

The recessed coaming patent is a utility and method patent, where the lap stitch is an example of a method patent. These are more strict and have a wider scope than a design patent, but require a higher duty of candor on the part of the patent applicant. Without full disclosure of all relevant prior art, a utility patent can fall apart.

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Re: Pygmy Recessed Ckpt Patent
Re: S&G: first multi-chine kayak
Re: S&G: first multi-chine kayak
Re: S&G: first multi-chine kayak
Re: S&G: first multi-chine kayak
Re: S&G: first multi-chine kayak *PIC*
Re: S&G: first multi-chine kayak
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Re: S&G: first multi-chine kayak
Re: S&G: first multi-chine kayak
Re: S&G: first multi-chine kayak
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Re: S&G: first multi-chine kayak
Re: S&G: first multi-chine kayak
Re: S&G: first multi-chine kayak
Re: S&G: first multi-chine kayak
Re: S&G: first multi-chine kayak *PIC*
Re: S&G: first multi-chine kayak *PIC*
Re: S&G: first multi-chine kayak *PIC*
Re: S&G: first multi-chine kayak
Re: S&G: first multi-chine kayak
Re: S&G: first multi-chine kayak
Re: S&G: first multi-chine kayak