Majority — HUNT J.
Syllabus
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.delivered the opinion of the court.
This court has decided many times that the eighteenth section of the Patent Act of 1886 gives to an assignee of the patent during the original term the right to continue during the extended term the use of a machine used by him during the original term.[1]
The complainants seek to distinguish the present .from the cases cited in this manner: In diose instances they say the machines were lawfully constructed by the patentees, or purchased from the patentees or their assignees, whereas the machine purchased by the defendants in this case was not a lawfully made machine, and was never purchased from the owner of the patent.
* Wilson v. Rousseau, 4 Howard, 646 ; Bloomer v. McQuewan, 14 Id. 539; Chaffee v. Boston Belting Company, 22 Id. 217; Bloomer v. Millinger, 1 Wallace, 340.
We are of the-opinion that the decree of the Circuit Court was correct, and that it should be
Affirmed.
Mr. Justice STRONG took no part in this judgment, not having sat in the case.