Petrache Poenaru receives French patent for the fountain pen

Background. Petrache Poenaru, a Romanian inventor who studied in Paris, Vienna, and England, attended the École Polytechnique in 1826. His need to take notes and copy courses motivated the creation of a writing instrument that used a swan's quill as an ink reservoir, addressing the limitations of contemporary writing tools.

Invention Details. The device was described as a 'never-ending portable pen, which recharges itself with ink.' It utilized a large swan quill as a barrel for the ink reservoir. This specific mechanism distinguished it from earlier pens, though the general concept of fountain pens existed prior to 1827.

Patent Registration. On 25 May 1827, the Manufacture Department of the French Ministry of the Interior registered Poenaru's invention under code number 3208. The registration included the French description 'plume portable sans fin, qui s’alimente elle-meme avec de l’ancre,' confirming the official recognition of the device in France.