TREA

Otilia Sfredel

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  • Chicago, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Safety cleanout cap
    • Patent number 10,508,427
    • Issue date Dec 17, 2019
    • Costel Sfredel
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Clean-out cap
    • Patent number D852333
    • Issue date Jun 25, 2019
    • Costel Sfredel
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Clean-out cap
    • Patent number D852334
    • Issue date Jun 25, 2019
    • Costel Sfredel
    • D23 - Environmental heating and cooling

Patents Applicationslast 30 patents

  • Information Patent Application

    Safety Cleanout Cap
    • Publication number 20180347162
    • Publication date Dec 6, 2018
    • Costel Sfredel
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Safety Clean-out Cap
    • Publication number 20170370079
    • Publication date Dec 28, 2017
    • Costel Sfredel
    • E03 - WATER SUPPLY SEWERAGE