The right to use a trade-mark is limited to the class of merchandise for which it is registered, and to the goods, falling within that class, on which it has been actually used.

For the purpose of classification the Patent Office has issued a list of forty-nine general classes of merchandise. An applicant for the registration of a trade-mark must specify the class of merchandise with which his mark has been used, and must describe the particular goods in that class on which it has been used. In case his application is granted, his right to use the trade-mark is confined to the line of products named in his application.

The list follows:

1. Raw or partly prepared materials.

2. Receptacles.

3. Baggage, horse equipments, portfolios, and pocket-books.

4. Abrasive, detergent, and polishing materials.

5. Adhesives.

6. Chemicals, medicines, and pharmaceutical preparations.