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US Patent 11885166 Condition activated door spring

OverviewStructured DataIssuesContributorsActivity
Is a
Patent
Patent
0
Date Filed
July 19, 2022
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Date of Patent
January 30, 2024
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Patent Application Number
17813580
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Patent Citations
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US Patent 8375519 Signal activated door hinge
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US Patent 8844195 Fire shutter
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US Patent 8955194 Fire door hinge with fusible pin
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US Patent 8979143 Fire bolt assembly for a door
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US Patent 9890964 Coaxial ventilator
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US Patent 9799462 Switching device with a heat extraction apparatus
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US Patent 10626651 Hinge for opening/closing door
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US Patent 7028431 Fire-resistant door
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US Patent 7488012 Thermal pin assembly
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Patent Inventor Names
J. D. Bucklin
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Daniel Norwitz
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Michael Gindhart
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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
11885166
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Patent Primary Examiner
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Justin B Rephann
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CPC Code
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E05B 65/104
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Y10T 16/22
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E05F 1/004
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E05F 1/006
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E05F 1/1207
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E05F 15/72
0

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