If you find a patent number or patent date by this manufacturer that is not on this
list, please contact the Site Historian.
Key to Links for Patent Information
USPTO = U.S. Patent Office .
Images of the actual patent can be viewed on the U.S. Patent Office web site but
a special TIFF viewer must be installed with your browser in order properly work.
More information on how to configure your computer to view these patents can be
found at TIFF image Viewers
for Patent Images.
DATAMP = Directory of American Tool And
Machinery Patents . A sister site to VintageMachinery.org with information
on patents related to machinery and tools. A much easier user interface than the
USPTO's for finding information on machinery patents.
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X519
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Feb. 14, 1804
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Steam Engine
|
Oliver Evans |
Philadelphia, PA |
Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2,000 of the almost 10,000 documents were recovered. Little is known about this patent. There are no patent drawings available. This patent is in the database for reference only.
This patent was renewed by an Act of Congress on 07 Feb 1815. |
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221
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Jun. 03, 1837
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Steam-boiler for generating steam for steam-engines and other purposes
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James J. Rush |
Philadelphia, PA |
The inventor was partner in Rush & Muhlenberg, operators of the Mars Works. They made steam engines and boilers as well as a wide range of milling machinery. |