TREA

Emerson J. Purkapile

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  • Chicago, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sliding latch lock
    • Patent number 5,145,221
    • Issue date Sep 8, 1992
    • Chicago Electrical Tool Company, Inc.
    • Ashley Pennebaker
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Combination ladder and hand truck
    • Patent number 4,934,485
    • Issue date Jun 19, 1990
    • Pease; Robert
    • Emerson J. Purkapile
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Ladder hinge
    • Patent number 4,773,503
    • Issue date Sep 27, 1988
    • Pease; Robert L.
    • Emerson J. Purkapile
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS