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US Patent 11993901 Shock absorbing retractable bollard systems

OverviewStructured DataIssuesContributorsActivity
Is a
Patent
Patent
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Date Filed
August 9, 2021
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Date of Patent
May 28, 2024
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Patent Application Number
17397620
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Patent Citations
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US Patent 7231954 Barrier
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US Patent 7244075 Telescoping bollard with screw drive
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US Patent RE39842 Temporary guard rail system
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US Patent 7287930 Vehicle impact attenuator
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US Patent 7717641 Bollard type barrier assembly
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US Patent 7832957 Removable barricade system
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US Patent 8096725 Writing implement comprising a device for venting the reservoir
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US Patent 8096727 Retractable post system
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US Patent 8297873 Locking ground post
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US Patent 8579540 Access control device including a retractable obstacle
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•••
Patent Inventor Names
Aaron J. Wiegel
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Jason Dondlinger
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David Swift
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Ronald P. Snyder
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Lucas I. Paruch
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Joe Korman
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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
11993901
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Patent Primary Examiner
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Thomas B. Will
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CPC Code
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E01F 13/022
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