Table of Similar Goods and Services
3713 Special treatment services (rust-proofing, re-tinning)
Notes on similar group 3713
Official notes (CNIPA Table of Similar Goods and Services, 2026 text; J&C reference translation)
Retinning is similar to tin-plating in 4002.
Practice notes (J&C)
This group has only rustproofing and retinning. Official note: retinning is similar to tin-plating in 4002. Electroplating and metal treatment are in 4001/4002 of Class 40 (practical tip). No additions or deletions to this group in 2026.
Applies to the 2026 edition · Published 2026-10-09 · Reviewed 2026-10-09
Data version: CNIPA Table of Similar Goods and Services, 2026 text (based on the 13th edition of the Nice Classification, NCL 13-2026, in force since 1 January 2026). Chinese terms, groups and numbers follow the official text; English and Spanish terms are taken from WIPO, while CNIPA-specific items (C numbers) carry reference translations, whose English was fully revised on 8 October 2026. NCL 13-2027 enters into force on 1 January 2027. Selected reference translations were revised on 13 October 2026.
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| Class | Group | Item No. | Chinese | English |
|---|---|---|---|---|
| 37 | 3713 | 370080 | 重新镀锡 | re-tinning |
| 37 | 3713 | 370037 | 防锈 | rustproofing |