Retrofittable card reader and carrier select keyboard unit for paystation telephones

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Description

FIGS. 1 and 2 are left side, top and front perspective views of a retrofittable card reader and carrier select keyboard unit for paystation telephones showing our new design in two sizes of identical configuration;

FIGS. 3 and 4 are top and bottom plan views thereof presented in an enlarged size;

FIG. 5 is a front elevational view of the unit shown in FIGS. 3 and 4;

FIGS. 6 and 7 are respectively left and right side elevational views of the unit shown in FIGS. 3 and 4.

The broken line showing of two different, conventional styles of paystation telephone in FIGS. 1 and 2 is for illustrative purposes only and forms no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D283890 May 20, 1986 Britz et al.
3462567 August 1969 Brown
3850426 November 1974 Blair
4259699 March 31, 1981 Yoshida
4277689 July 7, 1981 Thomas et al.
4472050 September 18, 1984 Stockburger et al.
4529870 July 16, 1985 Chaum
4562340 December 31, 1985 Tateisi
4562342 December 31, 1985 Solo
4589069 May 13, 1986 Endo et al.
Other references
  • Ericsson Review No. 15ND, May 1984, vol. 61; p. 14; FIG. 4 or p. 15; FIG. 6 on p. 6. Telephony 1-16-84, p. 107; Anritsu "Magnetic-Card Telephone".
Patent History
Patent number: D291566
Type: Grant
Filed: May 27, 1986
Date of Patent: Aug 25, 1987
Assignee: Reliance Comm/Tec Corporation (Chicago, IL)
Inventors: Joseph C. Perry (Bedford, TX), Donald E. Spears, II (Fort Worth, TX), Rodney A. Battles (Hurst, TX)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Horace B. Fay
Attorney: Michael M. Rickin
Application Number: 6/867,375
Classifications
Current U.S. Class: D14/59; D14/55; D14/56