Pen nibs
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 9, 1980
Grant Date -
N/A
app pub date -
Aug 31, 1978
filing date -
Aug 31, 1977
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A porous pen nib comprising a plastics sheath and a fibrous core, preferably of textile yarn, has a writing tip formed by the rim of the mouth of the sheath and a protruding core center which both wear smoothly and equally in writing use.
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