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US Patent 11761165 Manhole cover

OverviewStructured DataIssuesContributorsActivity
Is a
Patent
Patent
Date Filed
February 27, 2023
Date of Patent
September 19, 2023
Patent Application Number
18114903
Patent Citations
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US Patent 9004810 Explosion mitigating cover
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US Patent 10704221 Lockable composite manhole cover system, apparatus and method
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US Patent 7171994 Spillage containment system and kit for underground storage tanks
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US Patent 7201533 Sewer grate locking mechanism and method of installing same
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US Patent 7243515 Locking mechanism
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US Patent 7347070 Locking access box cover
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US Patent 7484908 Manhole cover security lock with controlled pressure release
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US Patent 7748927 Manhole insert and tether locking apparatus and method
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US Patent 8132436 Device for locking and unlocking a plug on a frame using a wrench
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US Patent 8784000 Explosion mitigating cover
•••
Patent Inventor Names
David M. Stadler
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
11761165
Patent Primary Examiner
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Thomas B. Will

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