IP Library › Granted Patent US 1,137,540
Granted Patent S1
US 1,137,540 · App. 30/025,601 · Granted Jul 28, 2026

Filter

Inventor: Guoshan Huang (Duyun, CN)
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Quick Facts
Patent No.
US 1,137,540
App. No.
30/025,601
Granted
Jul 28, 2026
Kind
S1
Claims (1)

The ornamental design for a filter, as shown and described.

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Cited By (1)
US 12,453,384