TREA

Long range fresnel lens array for infrared motion detector

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Information

  • Patent Grant
  • D331123
  • Patent Number
    D331,123
  • Date Filed
    Monday, August 19, 1991
    32 years ago
  • Date Issued
    Tuesday, November 17, 1992
    31 years ago
  • US Classifications
    Field of Search
    • US
    • D26 120
    • D26 122
    • D10 114
    • D10 121
    • 362 326
    • 362 329-340
    • 359 742
    • 359 743
    • Term of Grant
      14Years
Information
Abstract
Description
Claims
  • The ornamental design for a long range fresnel lens array for infrared motion detector, as shown and described.
US Referenced Citations (8)
Number Name Date Kind
D315422 Claytor et al. Mar 1991
D315423 Claytor et al. Mar 1991
D315424 Claytor Mar 1991
D315425 Claytor et al. Mar 1991
D315806 Claytor et al. Mar 1991
D315807 Claytor et al. Mar 1991
D315808 Claytor et al. Mar 1991
D315966 Claytor et al. Apr 1991
Foreign Referenced Citations (2)
Number Date Country
968412 Feb 1958 DEX
2173013A Oct 1986 GBX