Invention Grant
- Patent Title: Process and formulation for a plastic pencil
- Patent Title (中): 塑料铅笔的制作和配方
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Application No.: US13892999Application Date: 2013-05-13
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Publication No.: US08998519B2Publication Date: 2015-04-07
- Inventor: Hemant Patel
- Applicant: Hemant Patel
- Agent Michael I. Kroll
- Main IPC: B43K19/00
- IPC: B43K19/00 ; B43K19/02 ; B43K19/14 ; B43K19/16 ; B43K19/18
Abstract:
A plastic pencil comprising a writing core, an interlayer coating material placed about the writing core, a porous casing enclosing the interlayer coating material on the writing core and a covering applied to the exterior surface of the porous casing.
Public/Granted literature
- US20140334863A1 Process and Formulation for a Plastic Pencil Public/Granted day:2014-11-13
Information query
