Push-button keypad
United States Patent D440970

Henderson, Lee A. (Minneapolis, MN)
Linde, Larry G. (Andover, MN)
Lane, Joshua P. G. (Roswell, GA)
Application Number:
Publication Date:
Filing Date:
Universal Talkware Corporation (Minneapolis, MN)
Primary Class:
Field of Search:
D14/388, D14/247, D14/390-396, D14/455, D14/443, D14/399, 341/22, 341/23, 341/176, 178/17A, 178/17C, 200/5A, 200/5R, 200/6A, 200/6R, 235/145A, 235/145R, 345/168, 400/488, 400/489, 400/492, 400/485, 400/486
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US Patent References:
D380212Front of an operator panel for a cushioning conversion machineJune, 1997ColbyD14/443
5508703Membrane switch having a rotary motion detection functionApril, 1996Okamura et al.341/176
D290707Keyboard and display panel for intersection controllerJuly, 1987Allen et al.D14/443
3645441KEYBOARD FOR A DESK COMPUTERFebruary, 1972De Sandre235/145R

Primary Examiner:
Nunn, Freda
Attorney, Agent or Firm:
Howrey Simon Arnold & White, LLP
1. The ornamental design for a push-button keypad, as shown and described.


FIG. 1 is a top view of a push-button keypad showing our new design, the opposite surface is unornamented;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof; and,

FIG. 4 is a side view thereof, the opposite side is identical.