Combined data transmitter/receiver modem and security modem for prevention of unauthorized computer access

- Lockheed Corporation
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Description

FIG. 1 is a front perspective view of the combined data transmitter/receiver modem and security modem for prevention of unauthorized computer access showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof, the opposite side being a mirror image;

FIG. 4 is a top plan view thereof;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D243254 February 1, 1977 Coon
D272907 March 6, 1984 Coons
3976840 August 24, 1976 Cleveland et al.
Other references
  • Computer Products, 10-1981, p. 44, Data Encryptor for Preventing Unauthorized Access.
Patent History
Patent number: D292926
Type: Grant
Filed: Feb 19, 1985
Date of Patent: Nov 24, 1987
Assignee: Lockheed Corporation (Calabasas, CA)
Inventors: Lionel D. Gillespie (Atlanta, GA), Frank B. Golley, IV (Decatur, GA), Phillip J. Snoke (Atlanta, GA), Kenneth D. Timmerman (Smyrna, GA)
Primary Examiner: Susan J. Lucas
Attorney: Eric R. Katz
Application Number: 6/702,476
Classifications
Current U.S. Class: D14/107