Portable calculator

- Olivetti Tecnost S.p.A.
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FIG. 1 is a top, front and right perspective view of a portable calculator showing my new design;

FIG. 2 is a top front and left perspective view thereof;

FIG. 3 is a top rear and left side perspective view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a right side elevational view thereof; and,

FIG. 7 is a rear elevational view thereof.


The ornamental design for a portable calculator, as shown and described.

Referenced Cited
U.S. Patent Documents
D205809 September 1966 Crease et al.
D249390 September 12, 1978 Ohie
D335892 May 25, 1993 Onumata
D379366 May 20, 1997 Hokazono
D429757 August 22, 2000 Yatabe
D429758 August 22, 2000 Komuta et al.
D442618 May 22, 2001 Tamaki
Patent History
Patent number: D463816
Type: Grant
Filed: Jul 20, 2001
Date of Patent: Oct 1, 2002
Assignee: Olivetti Tecnost S.p.A. (Ivrea)
Inventor: Adriano Marini (Romano Canavese)
Primary Examiner: Caron D. Veynar
Attorney, Agent or Law Firm: Banner & Witcoff, Ltd.
Application Number: 29/145,282
Current U.S. Class: With Keyboard (D18/7)
International Classification: 1801;