for olta'ining a Patent in France, 13 1 



a new branch of industry is tlie result. Three kinds of brevets 

 are issued; viz. invention, perfect ionary, and importation. 



Patents of importation are granted to those who procure for 

 our industry a process or machine known in foreign countries 

 only. The laws of the 7th of January and 25th of May not 

 having determined in a positive manner the duration of these 

 patents, an imperial decree of the 13th of August 1810 ordains 

 that it shall be the same with that of patents of invention. 



Improvements in the arts often form an invention as impor- 

 tant as the primitive discovery. It was therefore proper to give 

 an extensive property in them by a patent. But if the French 

 laws have gone this length, they do not regard on the other 

 hand as improvements, any ornaments or mere changes of forms 

 and proportions. There must be an addition to the discovery. 



Several discoveries cannot be included in one brevet : each 

 must be the subject of a particular petition. In order to ob- 

 tain a title of this kind, the compliance with different formalities 

 is indispensable. 



The claimant must, in the first place, deposit at the general 

 secretariat of the prefecture of the department where he resides, 

 a sealed packet, containing 



1 . His petition to the minister of manufactures and commerce, 

 to the effect of obtaining a brevet for five, ten, or fifteen years, 

 according as he pleases. 



2. The memoir describing the means which he uses. 



3. Double sets of drawings signed by himself, or a model of 

 tlie object of his discovery. 



4. An inventory, in duplicate signed by him, of the pieces 

 contained in the packet. 



He must besides pay a tax, more or less considerable, ac- 

 cording to the duration of the l)revct, which cannot exceed fif- 

 teen years. 



Three hundred francs (1'3/. IO5.) are paid for a brevet for 

 five years. 



Eight hundred francs (3G/.) for ten years. 



Fifteen hundred francs (67/. lOv.) for a brevet for fifteen years, 

 besides fifty francs (2/. 2s.) for the fees of making out the pa- 

 tent. 



The law admits of the duration of brevets being extended: but 

 in order to obtain this favour, which is but rarely granted, a 

 royal decree Is necessary. A new sum is then paid in the above 

 proportions. 



The claimant must pay as a deposit with his papers, one half 



of the tax. He is allowed six months to pay the other half: 



if not paid then, the patent falls to the ground. If patentees 



wibh to make any changes in their original petition, they n»u-»t 



I 2 deposit 



