US Patent 11992714 Firestop device including an expandable fold-out collar
Is a
Date Filed
February 14, 2020
0
Date of Patent
May 28, 2024
0
Patent Application Number
17426833
0
Patent Citations
Patent Inventor Names
Frank Nijdam
0
Marek Juzak
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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