IP Library › Granted Patent US 1,080,867
Granted Patent S1
US 1,080,867 · App. 29/898,494 · Granted Jun 24, 2025

Fire damper

Inventors: Baozhu Shi (Baoding, CN); Lei Shi (Baoding, CN); Xiaoxiong Li (Baoding, CN); Bo Zhu (Baoding, CN)
Assignee: Baoding Maizhuo Medical Equipment Co., Ltd.
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Quick Facts
Patent No.
US 1,080,867
App. No.
29/898,494
Granted
Jun 24, 2025
Kind
S1
Claims (1)

The ornamental design for a fire damper, as shown and described.

References Cited (33)
US D49474S · Fargo · 1916 [cited by examiner]
US D248485S · Strauss · 1978 [cited by examiner]
US D259278S · McCaw · 1981 [cited by examiner]
US D269633S · Willinger · 1983 [cited by examiner]
US D282962S · Gerber · 1986 [cited by examiner]
US D333179S · Mikiya · 1993 [cited by examiner]
US D354335S · Siposs · 1995 [cited by examiner]
US 5405339A · Kohnen · 1995 [cited by examiner]
US 5573280A · Salter · 1996 [cited by examiner]
US 5797627A · Salter · 1998 [cited by examiner]
US D460522S · Flinchbaugh · 2002 [cited by examiner]
US D602128S · Williams · 2009 [cited by examiner]
US D733842S · Allred · 2015 [cited by examiner]
US D749703S · Otaka · 2016 [cited by examiner]
US D771806S · Steele · 2016 [cited by examiner]
US 9664320B2 · Schmidt · 2017 [cited by examiner]
US D928925S · Lei · 2021 [cited by examiner]
US D973198S · Bittigkoffer · 2022 [cited by examiner]
US 20080191466A1 · Knipple · 2008 [cited by examiner]
US 20090288663A1 · East · 2009 [cited by examiner]
US 20150174436A1 · Peel · 2015 [cited by examiner]
US 20220280819A1 · Johnson · 2022 [cited by examiner]
US 20250003520A1 · Shi · 2025 [cited by examiner]
CN 303817523 · 2016 [cited by examiner]
CN 307992678 · 2023 [cited by examiner]
CN 308595856 · 2024 [cited by examiner]
Home oxygen firebreaks. By BPR Medical. Dated Jul. 6, 2018. Found online [Oct. 2, 2024] https://www.youtube.com/watch?v=f6_NLpvx4NI (Year: 2018). [cited by examiner]
Oxygen Fire Damper. By Longfian Scitech Co. Ltd. Dated not available. Found online [Oct. 2, 2024] https://www.longfianoxygen.com/oxygen-concentrator-accessories/oxygen-fire-damper.html (Year: 2024). [cited by examiner]
Firesafe Cannula Valve Oxygen Supply Tubing Connector. By Shenyang Holian Precision Instrument Co. Dated not available. Found online [Oct. 2, 2024] http://www.holianoxygenvalve.com/product/firesafe-cannula-valve-oxygen-… [cited by examiner]
Westmed 0590 Swivel Oxygen Tubing Connectors. By VetmedUSA. Dated Nov. 20, 2019. Found online [Oct. 2, 2024] https://www.amazon.com/Westmed-Swivel-Oxygen-Tubing-Connectors/dp/B081S5B8PN (Year: 2019). [cited by examiner]
Oxygen Tubing Swivel Connector. By Wanderjoy. Dated Mar. 21, 2014. Found online [Oct. 2, 2024] https://www.amazon.com/Oxygen-Tubing-Swivel-Connector-1220/dp/B00J5QZDHK (Year: 2014). [cited by examiner]
Green Swivel Oxygen Tubing Connectors. By Healthcare Essentials. Dated Feb. 2, 2023. Found online [Oct. 2, 2024] https://www.amazon.com/Green-Swivel-Oxygen-Tubing-Connectors/dp/B0BTMWCYDK (Year: 2023). [cited by examiner]
Longfian Firebreak Valve for oxygen concentrator. By Longfian. Dated Sep. 24, 2022. Found online [Oct. 2, 2024]. https://www.youtube.com/watch?v=m9Mks5Fazh4 (Year: 2022). [cited by examiner]