TREA

John Freedom

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  • Tinley Park, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fertility calculator
    • Patent number 4,737,619
    • Issue date Apr 12, 1988
    • John Freedom
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Fertility calculator
    • Patent number 4,625,099
    • Issue date Nov 25, 1986
    • John Freedom
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Indicia means for keys
    • Patent number 4,417,410
    • Issue date Nov 29, 1983
    • John Freedom
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Clasp
    • Patent number 4,270,247
    • Issue date Jun 2, 1981
    • John Freedom
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Paper clip
    • Patent number 4,241,477
    • Issue date Dec 30, 1980
    • John Freedom
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER