TREA

Donald Cooper JR.

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  • York, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Stamping slug retention recess and method
    • Patent number 9,789,529
    • Issue date Oct 17, 2017
    • Donald Cooper
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Stamping slug retention recess
    • Patent number 9,364,884
    • Issue date Jun 14, 2016
    • Donald Cooper
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

  • Information Patent Application

    Stamping Slug Retention Recess and Method
    • Publication number 20160256911
    • Publication date Sep 8, 2016
    • Donald Cooper
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...