Keypad for telecommunications instruments

- Plessey Overseas Limited
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Description

FIG. 1 is a left side, top and front perspective view of a keypad for telecommunications instruments;

FIG. 2 is a rear elevational view thereof, the front elevational view being a mirror image;

FIG. 3 is a right side elevational view thereof; and

FIG. 4 is a top plan view thereof.

Referenced Cited
U.S. Patent Documents
D251296 March 13, 1979 Haas
D259260 May 19, 1981 Blomberg
D261761 November 10, 1981 Ingber
D266005 August 31, 1982 Beitler
D272823 February 28, 1984 Ferkunagu
D275669 September 25, 1984 Genaro et al.
3849621 November 1974 Habecker
4315114 February 9, 1982 Monti
4447685 May 8, 1984 Ohashi
4468542 August 28, 1984 Pounds
Other references
  • B. A. Pargh Co. Inc. Catalog 1985 Spring, at p. 280; Webcor.TM. Jumbo Button Phone, Model 767S WBR also at p. 252. AT&T Brochure, Big Button Telephone, published 11/83.
Patent History
Patent number: D299718
Type: Grant
Filed: Oct 22, 1986
Date of Patent: Feb 7, 1989
Assignee: Plessey Overseas Limited (Ilford)
Inventors: David J. Steer (Lincoln), Steven Hawker (Arnold), Leonard Colebourne (Nottingham)
Primary Examiner: Horace B. Fay, Jr.
Attorneys: Michael F. Oglo, Julian C. Renfro
Application Number: 6/922,987