IP Library › Granted Patent US 1,138,348
Granted Patent S1
US 1,138,348 · App. 29/940,213 · Granted Aug 4, 2026

Spring mattress

Inventor: Luhao Leng (Xiamen City, CN)
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Quick Facts
Patent No.
US 1,138,348
App. No.
29/940,213
Granted
Aug 4, 2026
Kind
S1
Claims (1)

The ornamental design for a spring mattress, as shown and described.

Priority Claims (1)
CN 202330843010.1 · Dec 21, 2023 · national
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