Tips calculator

Details Tips calculator Tips calculator

2002-06-27

2008-08-19

Do, Chat C (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Programmable calculator

Reexamination Certificate

active

07415492

ABSTRACT:
A novel calculator and methods for using same for calculating tips with ease and without requirement for knowledge of necessary tip calculating formulas. Three groupings of buttons provide buttons for entry of the check amount, calculation of the tip amount, and calculation of individual share to contribute to the bill and tip if there is more than one person being presented with a check. Pre-programmed calculating functions make tip calculation easy and convenient for anyone.

REFERENCES:
patent: 4028529 (1977-06-01), Van De Weghe
patent: 4458320 (1984-07-01), Sutton
patent: 4988025 (1991-01-01), Lipton et al.
patent: D333743 (1993-03-01), Johnson
patent: 5933812 (1999-08-01), Meyer et al.
patent: 5964823 (1999-10-01), Terriss et al.
patent: D420382 (2000-02-01), Dressel
patent: 6076079 (2000-06-01), Boston et al.
patent: 6591281 (2003-07-01), Kawasaki
Jim DelaHunt, Tip Calculators, Oct. 9, 1999, ZATZ Publisher at http://www.palmpower.com/issuesprint/issue199801/tipcalc.html.
Ilium Software, Tipster™, website available at http://www.iliumsoft.com/tipster.htm.

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