Vincent v. Tonopah Mining Co.

Citations

• 207 F. 579
• 1913 U.S. Dist. LEXIS 1327

Syllabus

<p>1. Patents (§ 328*)—Validity and Infringement—Process for Treatment of Ores.</p> <p>The Brown patent, No. 781,711, for a process for the treatment of precious metal-bearing ores, the essential feature of which consists in changing the order of the well-known steps in the recovery of metals from the ores by the cyanide process so that the cyanide treatment for the recovery of the fine values precedes -concentration, to which only the residue or tailings is subjected, while not entitled to a broad construction in view of the prior art, is valid and is infringed by a process in which substantially the same steps are taken in the same order, although other steps not included or required by the patent are added.</p> <p>2. Words and Phrases—“Leaoiiins.”</p> <p>As applied to the cyanide process of treating ores, the essence of “leaching” does not depend upon any special mode o'f applying to the ore the dissolving cyanide solution, but upon the fact of the application producing dissolution of the finer values.</p>