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US Patent 11920397 Hatch lift assist device

OverviewStructured DataIssuesContributorsActivity
Is a
Patent
Patent
0
Date Filed
January 31, 2023
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Date of Patent
March 5, 2024
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Patent Application Number
18104075
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Patent Citations
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US Patent 10676966 Safety hatch system
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US Patent 7980978 Hoisting and lowering driving engagement multi-row chain
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US Patent 11293226 Safety roof hatch system
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US Patent 7708037 Tree pusher
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US Patent 7819389 Hoisting and lowering device having engagement chains
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Patent Inventor Names
Troy Daniel Hayden
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Charles J. MacKarvich
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Mohammed Aamir
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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
11920397
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Patent Primary Examiner
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Chi Q Nguyen
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CPC Code
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E05F 11/20
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E05F 11/28
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E06C 7/00
0
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E06C 7/10
0
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E06C 7/12
0
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E06C 7/16
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E06C 9/02
0
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E05Y 2201/656
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E05Y 2201/668
0
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E05Y 2201/686
0
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