Dumas Contracting Ltd.

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Timmins, Ontario, CA

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for use with a raise climber in a mining construct having...
- Patent number 11,597,417
- Issue date Mar 7, 2023
- Dumas Contracting Ltd.
- Wayne Mohns
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
APPARATUS FOR USE WITH A RAISE CLIMBER IN A MINING CONSTRUCT HAVING...
- Publication number 20210016808
- Publication date Jan 21, 2021
- Dumas Contracting Ltd.
- Wayne Mohns
- B61 - RAILWAYS

Trademarklast 30 trademarks

Information Trademark
77600872 - DUMAS
- Serial number 77600872
- Registration number 3733328
- Filing date Oct 27, 2008
- Dumas Contracting Ltd.
- 37 - Building construction
Information Trademark
77600935 - DUMAS
- Serial number 77600935
- Registration number 3733329
- Filing date Oct 27, 2008
- Dumas Contracting Ltd.
- 37 - Building construction