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William A. Cipkar

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  • Amherstburg, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Manufacturing method for a hood type ventilation device
    • Patent number 11,241,554
    • Issue date Feb 8, 2022
    • CREST MOLD TECHNOLOGY INC.
    • Edward Helmut Bernard
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Dual material injection mold and method
    • Patent number 7,559,763
    • Issue date Jul 14, 2009
    • Crest Mold Technology Inc.
    • William A. Cipkar
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    Manufacturing Method for a Hood Type Ventilation Device
    • Publication number 20210379312
    • Publication date Dec 9, 2021
    • Crest Mold Technology Inc.
    • Edward Helmut Bernard
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    Dual material injection mold and method
    • Publication number 20060284336
    • Publication date Dec 21, 2006
    • William A. Cipkar
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL