Operator means for cold frame or window

Patents Grantslast 30 patents

  • Information Patent Grant

    Ventilating construction and method of making the same

    • Patent number 4,809,592
    • Issue date Mar 7, 1989
    • DALEN PRODUCTS, INC.
    • Edward N. Caldwell
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Heat gain and retention structure, particularly a cold frame

    • Patent number 4,671,011
    • Issue date Jun 9, 1987
    • Michael E. Jantzen
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Greenhouse and method of growing plants in cold climates

    • Patent number 4,242,833
    • Issue date Jan 6, 1981
    • Environmental Research Institute of Michigan
    • Reed E. Maes
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Ventilated plant protector

    • Patent number 3,946,521
    • Issue date Mar 30, 1976
    • Frank M. Ours
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    3698131

    • Patent number 3,698,131
    • Issue date Oct 17, 1972
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    3129530

    • Patent number 3,129,530
    • Issue date Apr 21, 1964
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    2608797

    • Patent number 2,608,797
    • Issue date Sep 2, 1952
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    2592976

    • Patent number 2,592,976
    • Issue date Apr 15, 1952
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    1993507

    • Patent number 1,993,507
    • Issue date Mar 5, 1935
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    216313

    • Patent number 216,313
    • Issue date Jun 10, 1879
    • F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents