U.S. patent number D304,840 [Application Number 06/877,994] was granted by the patent office on 1989-11-28 for marking pen. This patent grant is currently assigned to Shachihata Industrial Co., Ltd.. Invention is credited to Keiichi Mizutani, Akira Ohashi.
United States Patent | D304,840 |
Mizutani , et al. | * November 28, 1989 |
Inventors: | Mizutani; Keiichi (Nagoya, JP), Ohashi; Akira (Nagoya, JP) |
---|---|
Assignee: | Shachihata Industrial Co., Ltd.
(Nagoya, JP) |
[*] Notice: | The portion of the term of this patent subsequent to May 23, 2003 has been disclaimed. |
Appl. No.: | 06/877,994 |
Filed: | June 24, 1986 |
Dec 26, 1985 [JP] | 60-54603 | |||
Current U.S. Class: | D19/163; D19/913; D19/901 |
Field of Search: | ;D19/35,36,41-51,54-57 ;401/88,104,129,130,131,195,196,198,209,202,259,260,262-266 |
D193918 | October 1962 | Ayres, Jr. |
D260656 | September 1981 | Funahashi |
2983946 | May 1961 | Edelstone et al. |
4522523 | June 1985 | Vogelsang |
57-5263 | Apr 1982 | JP | |||
665019 | Nov 1985 | JP | |||
Office Appliances, May 1965, p. 149, advertisement for Marsh Mark n Draw upper left item. . Office Appliances, Sep. 1969, p. 23, advertisement for Shachihata, Inc. item middle right of page. . Adcom, Inc. 1984, Product Catalog, p. 70, see item upper right of page.. |
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