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- Abraham Lincoln's patent relates to an invention to buoy and lift boats over shoals and obstructions in a river. Abraham Lincoln conceived the invention when on two occasions the boat on which he traveled got hung up on obstructions. Lincoln's device was composed of large bellows attached to the sides of a boat that were expandable due to air chambers. Filed on March 10, 1849, Lincoln's patent was issued as Patent No. 6,469 later that year, on May 22. His successful patent application led to his drafting and delivering two lectures on the subject of patents while he was president. Lincoln was at times a patent attorney and was familiar with the patent application process as well as patent lawsuit proceedings. Among his notable patent law experiences as a result of his patent was litigation over the mechanical reaper; both he and his future Secretary of War, Edwin Stanton, provided counsel for John Henry Manny, an inventor. The original documentation of Lincoln's patent was rediscovered in 1997. (en)
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- 18867 (xsd:nonNegativeInteger)
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- "Buoying Vessels Over Shoals" (en)
- Patent No. 6,469 for (en)
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- Detail of bellows on patent model. (en)
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- Lincoln's patent showing the expansible buoyancy air chambers, inflatable bellows to lift a boat over obstructions. The bellows are now in a collapsed state taking up little space and is protected against harm because of configuration. (en)
- Patent Model of Abraham Lincoln's invention at Smithsonian Institution (en)
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- 1849-03-10 (xsd:date)
- 1849-05-22 (xsd:date)
- dbr:Illinois
- Abraham Lincoln (en)
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- Location (en)
- Filing date (en)
- Inventor (en)
- Issue date (en)
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- Abraham Lincoln's patent relates to an invention to buoy and lift boats over shoals and obstructions in a river. Abraham Lincoln conceived the invention when on two occasions the boat on which he traveled got hung up on obstructions. Lincoln's device was composed of large bellows attached to the sides of a boat that were expandable due to air chambers. Filed on March 10, 1849, Lincoln's patent was issued as Patent No. 6,469 later that year, on May 22. His successful patent application led to his drafting and delivering two lectures on the subject of patents while he was president. (en)
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- Abraham Lincoln's patent (en)
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