Spring v. Packard
U.S. Circuit Court for the District of Massachusetts
[These were bills in -equity by Charles Spring and others against James A. Packard and Charles Howard to enjoin the infringement of letters patent No. 23,957, granted to complainants May 10, 1859.)
1Opinion of the Court
LOWELL, District Judge.
The plaintiffs • are the inventors and owners of a valuable *989and ingenious improvement in lathes, for turning irregular forms, for which a patent was issued to them May 10, 1S59, but which they testify was completed in the summer of 1S57. They describe the machine with fulness and accuracy in their specification. Its principal application was intended to be, and is, for turning sewing machine, needles and similar articles, which are to be brought to a point, and the claim is for, “the combination of a griping-chuck. by which an article can be- so held by one end as to…
2Cases cited2 opinions
- Spring v. Domestic Sewing-Machine Co.United States Circuit Court · 1882
- Spring v. Domestic Sewing-Machine Co.United States Circuit Court · 1881