DURASYSTEMS BARRIERS INC

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VAUGHAN, CA

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Patents Grantslast 30 patents

Information Patent Grant
Fire-rated modular duct assembly suitable for exhausting flammable...
- Patent number RE49087
- Issue date May 31, 2022
- DURASYSTEMS BARRIERS INC.
- William Christopher Duffy
Information Patent Grant
Fire-rated ventilation duct and improvements therein
- Patent number 11,333,390
- Issue date May 17, 2022
- DURASYSTEMS BARRIERS INC.
- William Christopher Duffy
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
FIRE-RATED VENTILATION DUCT AND IMPROVEMENTS THEREIN
- Publication number 20220268480
- Publication date Aug 25, 2022
- Durasystems Barriers Inc.
- William Christopher Duffy
- F24 - HEATING RANGES VENTILATING
Information Patent Application
FIRE-RATED VENTILATION DUCT AND IMPROVEMENTS THEREIN
- Publication number 20210302058
- Publication date Sep 30, 2021
- Durasystems Barriers Inc.
- William Christopher Duffy
- F24 - HEATING RANGES VENTILATING
Information Patent Application
PRE-FABRICATED MODULAR FIRE-RATED CONDUIT ASSEMBLY
- Publication number 20190154295
- Publication date May 23, 2019
- Durasystems Barriers Inc.
- William Christopher Duffy
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Trademarklast 30 trademarks

Information Trademark
90078297 - DURADUCT
- Serial number 90078297
- Filing date Jul 28, 2020
- DURASYSTEMS BARRIERS INC.
- 6 - Common metals and their alloys
Information Trademark
88632134 - LFS
- Serial number 88632134
- Filing date Sep 26, 2019
- Durasystems Barriers Inc.
- 19 - Building materials (non-metallic)
Information Trademark
77217207 - DURABARRIER
- Serial number 77217207
- Registration number 3664191
- Filing date Jun 27, 2007
- DuraSystems Barriers Inc.
- 6 - Common metals and their alloys