Detroit Lubricator Manuf'g Co. v. Renchard’s Empirical Analysis

Citation profile

3 federal appellate · 3 district ·

Most-quoted passages

The sentences later courts lift from this opinion, ranked by how many decisions quote each — the parts of the opinion doing the work. These counts are smaller than the citation total above because most of the 8 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.

1. ““The defendants exhibit a drawing made by J. Y. Renchard which bears date August. 10, 1876, and which, it is testified by him, was made on that day, and by others, that he showed'it to them about that time. This antedates Parshall’s application, but it fails to supersede his patent for the reason that it seems well established in evidence that Renchard did not at that time prosecute the matter beyond the mere drawing. The drawing seems to exhibit a perfect machine in all its parts, and sufficiently to show the combination forming the subject of the present controversy, particularly the metallic oil cup, the siphon tube carrying the condensed water into the glass indicator, and ■the two 'chambers, condensing and oil, closely and directly united. Neverthe-les®, it is clearly proven that the defendants did not, in fact, construct an indicator in this form, and reduce it to actual use, until after it had been successfully accomplished by Parshall, nor until alter the date of his patent. This mere drawing, therefore, cannot be allowed to have the effect of depriving Parshall of his title of being the first and original inventor.””

   1 later decision quote this exact passage
   e.g. Automatic Weighing Mach. Co. v. Pneumatic Scale Corp.