Ballpoint Pen Patented

1945 Ad, Argentina

1945 advertisement, Argentina

Seventy years ago today (June 10, 1943), László Bíró filed for a patent on a new type of pen and, with his brother György, formed Biro Pens of Argentina. While working as a journalist in Hungary in the previous decade, he noticed that the ink used in newspaper printing dried quickly, leaving the paper dry and smudge-free. He tried using the same ink in a fountain pen but found that it would not flow into the tip, as it was too viscous. Working with his brother, a chemist, he developed a new tip consisting of a ball that was free to turn in a socket, and as it turned it would pick up ink from a cartridge and then roll to deposit it on the paper. Bíró first patented the invention in Paris in 1938. The new design patented in Argentina (where the brothers have moved in 1943) was licensed for production in the United Kingdom for supply to Royal Air Force aircrew, who found they worked much better than fountain pens at high altitude. In 1945 Marcel Bich bought the patent from Bíró for the pen, which soon became the main product of his Bic company.

Source: Wikipedia

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