Clipboard

Details Clipboard Clipboard

2007-09-13

2009-06-30

Albert, Elizabeth A (Department: 2913)

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Holder or file

Design Patent

active

D0595357

CLAIM:
The ornamental design for the clipboard, as shown and described.

REFERENCES:
patent: 434506 (1890-08-01), Frankey
patent: 1375399 (1921-04-01), Leonard
patent: 1668912 (1928-05-01), Keays et al.
patent: D174188 (1955-03-01), Martin
patent: 3670370 (1972-06-01), Goodwin
patent: D224138 (1972-07-01), Mahler
patent: 3833970 (1974-09-01), Smith, Jr.
patent: D256754 (1980-09-01), LoJacono et al.
patent: D285270 (1986-08-01), Hannah et al.
patent: D303811 (1989-10-01), de Witt
patent: D334213 (1993-03-01), Evenson
patent: D344197 (1994-02-01), Numbers
patent: D382735 (1997-08-01), Zapf
patent: D491001 (2004-06-01), Adams et al.

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