What Is A Patent Drawing ?
patent drawing will have the patent number, the name of the patent, the
dates it was applied for and when it was issued, one or more
illustrations, signatures, and often the name of the firm that
Brief History of Patents
concept of patents dates back to 1421, Florence, Italy, when Filippo
Brunelleschi was granted the first recorded patent, for the design and
use of a ship, the Badalone. This ship was intended to ferry supplies
up the Arno river to the city for the building of the Florentine
cathedral dome, that Brunelleschi had designed. Unfortunately the
Badalone sank during delivery of a load of white marble. The Venetian
Senate passed the first patent law in 1474, granting limited duration
monopoly for original devices.
England King Henry IV granted that country's first patent for stained
glass manufacturing in 1449. During this time, a patent was a
government-granted monopoly, so could be as much a right to manufacture
or trade as well as the right to deny others to do so. Toward the end
of the 16th century, the Crown's corrupt abuse of granting monopolies
was causal in the evolution of the rule of law and judicial power at
the expense of the monarch, and set the country on the path to eventual
the United States, the governmental right to grant patents was
enshrined in the constitution in Article 1. The first U.S. patent act
was in 1790.
to 1910, when they were abolished by Congress, inventors could submit
caveats to the Patent Office. They were preliminary applications in
which the inventor made claims to one or more potential inventions
without presenting the detail required in a formal patent application.
The Patent Office noted the subject matter of the caveat and placed it
in a confidential archive. If within one year another inventor filed an
application on a similar process or device, the Patent Office notified
the holder of the caveat, who then had three months to submit a formal
Japan during the Edo period, there was a tendency to abhor new things,
a "Law for New Items" was proclaimed in the year 6 of the Kyoho Era
(1721). The purpose of this law was described as "to ensure that
absolutely no new types of products would be manufactured".
Interesting Facts About Patents
• Thomas Jefferson was the first Patent Examiner.
• In 1790, the cost to obtain a patent was between $4 and $5.
• The first U.S. patent was granted on July 31, 1790, to Samuel Hopkins
of Pittsford, Vt., for an improvement in "the making of Pot ash and
Pearl ash by a new Apparatus and Process."
• Mary Kies of Killingly, Conn., was the first women to obtain a
patent, she received a patent in 1809 for a way to weave "straw with
silk or thread."
• Oscar Hammerstein
financed his theatre interests from the proceeds of some 80 patents, most of them related to cigar making machines.
• Chester Carlson, a patent agent who tired of having to make multiple
copies of patent applications using carbon paper came up with a new
copying system in 1959 and took it to IBM for evaluation. The "experts"
at IBM determined potential sales to be minimal because people wouldn’t
want to use a bulky machine when they had carbon paper. Carlson’s
invention was the xerography process, the company founded on the system
• Abraham Lincoln while a congressman from Illinois, received Patent
No. 6,469 for "A Device for Buoying Vessels over Shoals." The idea of
the invention was that if a ship ran aground in shallow waters, the
bellows would be filled with air, and the vessel, thus buoyed, would
float clear. The model Lincoln whittled can be seen at the
Smithsonian's National Museum in Washington.
• Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An
Improvement in Adjustable and Detachable Straps for Garments." He later
received two more patents: one for a self-pasting scrapbook and one for
a game to help players remember important historical dates.
Though George Ferris built the first Ferris Wheel in 1893 for the
Columbia Exposition in Chicago he never patented the idea. The patent
office has since issued more than 100 patents for round-abouts and
Ferris Wheel improvements.