Door knob

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Description

FIG. 1 is a first perspective view of a door knob showing my new design;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is a rear view of FIG. 1;

FIG. 5 is a left side view of FIG. 1;

FIG. 6 is a right side view of FIG. 1;

FIG. 7 is a top plan view of FIG. 1; and,

FIG. 8 is a bottom plan view of FIG. 1.

The broken lines in the drawings depict portions of the door knob that form no part of the claimed design.

Claims

The ornamental design for a door knob, as shown and described.

Referenced Cited
U.S. Patent Documents
D297807 September 27, 1988 Fildan
D844408 April 2, 2019 Lu
D911148 February 23, 2021 Yi
D923454 June 29, 2021 Chen
D964838 September 27, 2022 Liu
D971002 November 29, 2022 Liu
D981205 March 21, 2023 Lu
D983013 April 11, 2023 Bi
D994460 August 8, 2023 Huang
D1007998 December 19, 2023 Wu
D1009592 January 2, 2024 Wu
D1014218 February 13, 2024 Yuan
D1042083 September 17, 2024 Liu
D1052376 November 26, 2024 Li
D1058340 January 21, 2025 Wang
D1064782 March 4, 2025 Kuang
D1067014 March 18, 2025 Kuang
D1075472 May 2025 Wu
D1097781 October 14, 2025 Chen
D1102863 November 25, 2025 Wang
D1104698 December 9, 2025 Huang
D1106796 December 23, 2025 Kuang
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Foreign Patent Documents
306419319 March 2021 CN
202530152334.X November 2025 CN
6315593 October 2023 GB
Other references
  • “Iuknob Fingerprint Door Knob” Mar. 28, 2023, Amazon, site visited May 8, 2026: https://www.amazon.com/iuknob-Fingerprint-Navigation-Programming-Combination/dp/B0BVRNTDQG (Year: 2023).
  • “ThorBolt Fingerprint Door Lock” Sep. 5, 2024, Amazon, site visited May 8, 2026: https://www.amazon.com/ThorBolt-Fingerprint-THREAD-Required-MK1/dp/B0D91YZK3V (Year: 2024).
  • “Richelock Fingerprint Door Knob” Dec. 1, 2024, Amazon, site visited May 8, 2026: https://www.amazon.com/Richelock-Fingerprint-Waterproof-Weatherproof-Navigation/dp/B0DJDF476M (Year: 2024).
  • “Fingerprint Door Lock” Dec. 1, 2024, Amazon, site visited May 8, 2026: https://www.amazon.com/Fingerprint-Biometric-Thumbprint-Apartment-Office-Matte/dp/B0D1BR28N8 (Year: 2024).
  • “ThorBolt G1 Fingerprint Door Knob Lock” Feb. 16, 2026, Amazon, site visited May 8, 2026: https://www.amazon.com/ThorBolt-G1-Fingerprint-Biometric-Auto-Lock/dp/B0FWJZXHBW (Year: 2026).
Patent History
Patent number: D1152725
Type: Grant
Filed: Mar 25, 2025
Date of Patent: Oct 13, 2026
Assignee: Shenzhen Zhao Lang Intelligent Technology Co., Ltd. (Shenzhen)
Inventor: Yaxin Liu (Shenzhen)
Primary Examiner: Darlington Ly
Assistant Examiner: Sydney M Evans
Application Number: 29/995,243
Classifications
Current U.S. Class: D8/331; D8/301