Abe Lincoln's patent

[JTSPANGLER]

I've learned that Abraham Lincoln received a U.S. Patent. Anyone know its
subject matter or number? I'll check at a PTDL soon and post the answers.
Thanks.

Jeff Spangler
Jeffrey T. Spangler (JTSpa...@aol.com)
Registered Patent Attorney
Philadelphia, Pennsylvania

[Michael F. Brown]

> I've learned that Abraham Lincoln received a U.S. Patent. Anyone know its
> subject matter or number? I'll check at a PTDL soon and post the answers.
> Thanks.

It was essentially a set of water wings for boats, used to lift river boats
over the low-head dams which were becoming prevalent on rivers at the time.
Doubt it would have been of much use as shown, since the weight of the floats
would most likely have eliminated any lift they would have given, but an
interesting idea nonetheless. The complete info is:
MANNER OF BOUYING VESSELS Patent No. 6,469, Patented May 22, 1849

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Michael F. Brown
Registered Patent Attorney No. 29,619

http://www.bpmlegal.com/
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[David Kiewit]

JTSPANGLER wrote:
>
> I've learned that Abraham Lincoln received a U.S. Patent. Anyone know its
> subject matter or number? I'll check at a PTDL soon and post the answers.
> Thanks.
>

It involved a method of raising sunken ships (or grounded ones?).
Best
Dave Kiewit

--
David A. Kiewit (727) 866-0669
5901 3rd St.South, St. Petersburg, FL 33705
Registered Patent Agent http://patent-faq.com