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EUNSON V. DODGE, 85 U. S. 414 (1873)

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U.S. Supreme Court

Eunson v. Dodge, 85 U.S. 18 Wall. 414 414 (1873)

Eunson v. Dodge

85 U.S. (18 Wall.) 414


Where a person, during the original term of a patent bought from one who had no right to sell it a machine which was an infringement of the patent, and afterwards himself bought the patent for the county where he was using the machine, held that on an extension of the patent the owners of the extension could not recover against him for using the machine after the original term had expired, but that such purchase of the interest in the patent, removed, as to the purchaser, all disability growing out of the wrongful construction of the machine then used by him and rendered the use of it legal.

On the 23d of May, 1854, the United States granted to Myers et al. a patent for a sawing machine for fourteen years -- in other words, till the 23d of May, 1868.

About two years after the grant of the patent -- that is to say, in April, 1856 -- the patentees assigned to one Schureman, for himself, his legal representatives, and assigns, all their right, title, and interest in and to the same for, in, and to Hudson County, New Jersey, to the end of the term for which the patent had been granted.

In May, 1865, and subsequently to the assignment just mentioned, Dodge & Co., a firm of the same Hudson County, New Jersey, already mentioned, bought from strangers who had no right or license to make or vend it a sawing machine which was an infringement of the patent. Dodge & Co. used this machine for about fifteen months in good faith and without knowledge that it was an infringement. When receiving notice from Schureman that it was so and that he was assignee of the patent for Hudson County, they, on the 22d of September, 1866, purchased of him the letters and all his right and interest therein for the said county. This invested them, of course, with all the rights of the patentee, for Hudson County, during the term of the patent -- in other words, till the 23d of May, 1868.

On the 13th of May, 1868, after the transfer by the patentees chanroblesvirtualawlibrary

Page 85 U. S. 415

to Schureman and by him to Dodge & Co., the patent was extended to Myers and the other patentee, from the 23d of May, 1868, until the 23d of May, 1875.

Their right in this extension these parties transferred to Eunson et al.

Hereupon, in July, 1871, these last-named parties finding that Dodge & Co. were still using this machine, originally made as already said, without license and unlawfully, and conceiving that in thus using it, after the date when the original patent had expired and in the term of the extension which had been assigned to them, Dodge & Co. were infringing their rights, filed this bill to enjoin the use and to recover compensation.

Dodge & Co. set up that they were protected in the use of the machine by the terms of the eighteenth section of the Patent Act of July 4, 1836. That act, after providing for renewals or extensions, enacts that:

"The benefit of such renewal shall extend to assignees and grantees of the right to use the thing patented, to the extent of their interest therein."

The court below held that the defendants were thus protected, and a decree having been given accordingly, the complainants brought the case here. chanroblesvirtualawlibrary

Page 85 U. S. 416

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