Fountain pen
Basic information
Writing instrument with a metal nib and using an internal reservoir to hold ink.
When such a pen was developed, it had a reservoir of ink in its barrel, thus the name fountain pen.
The first English patent for a fountain pen was issued in May 1809 to Frederick Fölsch, an improved fountain pen feed issued to Joseph Bramah in September 1809
The fountain pen was available before but it was Romanian inventor Petrache Poenaru who received a French patent in 1827. The pen had a barrel made from a large swan quill.
It went through the years and inovations, as a pen clip,deflatable rubber sac to hold the ink, airtight cap and others, also plastic pen cartridge wasn't available until 1953, introduced by Waterman pens
Mass-produced fountain pen started in the 1880s. Dominant American producers were Waterman.
Half birthday 
Next half birthday falls on
Age in different time units
Planet Age
How old Fountain pen would be if it was started on a different planet
- 35 days from now, August 12, 2025, Fountain pen celebrate 823rd Mercury age
- 79 days from now, September 25, 2025, Fountain pen celebrate exactly 2380 months
- 123 days from now, November 8, 2025, Fountain pen celebrate 824th Mercury age
- 137 days from now, November 22, 2025, Fountain pen celebrate exactly 1,740,000 hours
- 139 days from now, November 23, 2025, Fountain pen celebrate 199th half birthday
- 211 days from now, February 4, 2026, Fountain pen celebrate 825th Mercury age
- 215 days from now, February 8, 2026, Fountain pen celebrate 323rd Venus age
- 299 days from now, May 3, 2026, Fountain pen celebrate 826th Mercury age
- 321 days from now, May 25, 2026, Fountain pen celebrate 199th birthday