US Patent 11512523 Fire rated door
Patent 11512523 was granted and assigned to Cornellcookson on November, 2022 by the United States Patent and Trademark Office.
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Patent Number
115125230
Date of Patent
November 29, 2022
0Patent Application Number
164991020
Date Filed
March 27, 2018
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US Patent 11512523 Fire rated door
Article
A closure may include a door configured to seal an opening. The door may include a section with an internal cavity. The closure may also include a core within a first portion of the internal cavity of the section. The core may be configured to expand from a relaxed state to an expanded state and provide a seal between the door and an edge of the opening when the core is in the expanded state.
Infobox
Is a
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
115125230
Date of Patent
November 29, 2022
0Patent Application Number
164991020
Date Filed
March 27, 2018
0Patent Citations
Patent Primary Examiner
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