US 11,697,302 B2
Nib for writing felt pen
Etienne Roudaut, Clichy (FR)
Assigned to Société BIC, Clichy (FR)
Appl. No. 17/754,279
Filed by Société BIC, Clichy (FR)
PCT Filed Sep. 28, 2020, PCT No. PCT/EP2020/077117
§ 371(c)(1), (2) Date Mar. 29, 2022,
PCT Pub. No. WO2021/063894, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 19306223 (EP), filed on Sep. 30, 2019.
Prior Publication US 2022/0339959 A1, Oct. 27, 2022
Int. Cl. B43K 8/10 (2006.01); B43K 1/00 (2006.01); B43K 1/12 (2006.01); B43K 5/03 (2006.01)
CPC B43K 8/10 (2013.01) [B43K 1/003 (2013.01); B43K 1/12 (2013.01); B43K 5/03 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A nib for a refillable free ink writing felt pen comprising:
a body comprising:
a first end, configured to deliver ink to a writing support;
a second end, opposite the first end, configured to be inserted in a nib receiving part of a refillable free ink writing felt pen body of the refillable free ink writing felt pen; and
a dry ink tank comprising dry ink, the dry ink tank being delimited by the second end of the body of the nib and a dry ink tank wall comprising a water-soluble film.