TREA

Donald B. Naylor

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  • Plymouth, IN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Invertible prefabricated door
    • Patent number 4,441,277
    • Issue date Apr 10, 1984
    • Donald B. Naylor
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Invertible prefabricated door
    • Patent number 4,305,229
    • Issue date Dec 15, 1981
    • Donald B. Naylor
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Sectionalized door for a barn or similar structure
    • Patent number 4,182,080
    • Issue date Jan 8, 1980
    • Donald B. Naylor
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Invertible prefabricated door
    • Patent number 4,161,845
    • Issue date Jul 24, 1979
    • Donald B. Naylor
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Sliding barn door
    • Patent number 4,030,246
    • Issue date Jun 21, 1977
    • Donald B. Naylor
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS