France and Colonies.—The term of a French patent is 15 years. If the invention it covers is not worked within 2 years after it is issued it becomes public property.
| Patent for 15 years | $60 |
Germany and Colonies.—A German patent includes Prussia, Saxony, Bavaria and other kingdoms of the Empire. There are two classes of patents issued and these are 1, the technical patent, which is issued for 15 years, and 2, the model patent, which is issued for 6 years, the first corresponding to the U. S. ordinary patent and the second to the U. S. design patent.
| Technical patent, for 15 years | $60 |
| Model patent, for 6 years | 35 |
Austria and Hungary.—
| Patent in either country for 15 years. Fee is | $70 |
Belgium.—Patent for 20 years. Fee is $40.
Spain.—Patent for 20 years. Fee is $65.
Italy.—Patent for 15 years. Fee is $65.
Russia.—Patent for 15 years. Fee is $90.