Majority — Blatchford J.
Syllabus
ERROR to the circuit court of the united states for the NORTHERN DISTRICT OF CALIFORNIA.delivered the opinion of the court.
This is an action at law brought by The Excelsior Coal Company, a corporation, against The Oregon Improvement Company, another corporation, in the Circuit Court of the United States for the Northern District of California, for the . infringement of a reissued patent.
The complaint avers that, on the surrender.of the original patent, a new patent was>issued to the patentee “ for the same invention, for the residue of the term then unexpired for which the said original letters patent were granted.” The answer of the defendant denies “each and every, all and singular, the allegations ” contained in -the complaint. The case was tried before a jury, and resulted In a verdict of $7000 for the plaintiff, for which, with costs, judgment was entered. To review this judgment the defendant has brought a writ of error.
We are of opinion that the Circuit Court committed an error in excluding the original patent. It was relevant evidence upon the question whether the reissue was “for the same invention ” as the original, and the issue on that subject was sufficiently raised by the averment of the complaint and the denial in the answer. The defendant was entitled to try that question in a formal manner, and it could not do so unless the original patent was introduced in evidence.
The judgment is reversed and the case is remanded to the , Circuit Court with a direction to award a new trial.