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US 11,697,302 B2Granted
Nib for writing felt pen
AssigneeSociete BIC
InventorEtienne Roudaut
Life of this patent
Estimating the term…
Abstract
A nib for a refillable free ink writing felt pen includes a body and a dry ink tank including dry ink, the dry ink tank being delimited by the body of the nib and a dry ink tank wall including a water-soluble film.
Claims18
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.
2 more elements
Dependencies are inferred from the claim text.