Knock type eraser

Details Knock type eraser Knock type eraser

2007-12-20

2008-11-25

Albert, Elizabeth A (Department: 2913)

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Eraser

Design Patent

active

D0581462

CLAIM:
The ornamental design for a knock type eraser, as shown and described.

REFERENCES:
patent: 3288114 (1966-11-01), Ritter
patent: D233613 (1974-11-01), Hand, III
patent: 3941488 (1976-03-01), Maxwell
patent: D258219 (1981-02-01), Oka
patent: D259053 (1981-04-01), Leblond
patent: 4453849 (1984-06-01), Fernandez
patent: D332627 (1993-01-01), Anavil et al.
patent: D335142 (1993-04-01), Katami et al.
patent: 6048121 (2000-04-01), Carver
patent: D425122 (2000-05-01), Bardet
patent: D439611 (2001-03-01), Fukami et al.
patent: 6368004 (2002-04-01), Yoshida et al.
patent: D501505 (2005-02-01), Chien
patent: 2008/0107469 (2008-05-01), Yoon
Mono-Zero Knock Type Eraser, Item STT009, Tombo Co., 3 pages, Jul. 2008.

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