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US Patent 11661735 Fire stop for a passageway

Patent 11661735 was granted and assigned to Reliance Worldwide Corporation on May, 2023 by the United States Patent and Trademark Office.

OverviewStructured DataIssuesContributors
Is a
Patent
Patent
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Current Assignee
Reliance Worldwide Corporation
Reliance Worldwide Corporation
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Date Filed
May 7, 2021
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Date of Patent
May 30, 2023
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Patent Applicant
Reliance Worldwide Corporation
Reliance Worldwide Corporation
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Patent Application Number
17314257
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Patent Citations
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US Patent 8336832 Firestop collar
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US Patent 8776462 Firestop collar
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Patent Citations Received
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US Patent 11992714 Firestop device including an expandable fold-out collar
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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
11661735
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Patent Primary Examiner
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Gisele D Ford
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CPC Code
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F16L 5/02
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F16L 5/04
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E04C 2/52
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E04B 1/948
0
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H02G 3/0412
0
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A62C 2/065
0
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E04B 1/947
0
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H02G 3/22
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E04G 15/061
0

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