Legal Opinion
Dennis v. Great Northern Ry. Co.
District Court, E.D. Washington
Decided July 15, 1931No. 4341PublishedCited by 5 opinions
1Opinion of the Court
WEBSTER, District Judge.
The plaintiffs are the joint owners of letters patent, No. 1,308,583, dated July 1,1919, covering a method or process for excavating tunnels and especially adapted to the boring of long tunnels through rock formations. They bring this action for the recovery of damages for the alleged infringement of the patent by the defendants in excavating the Cascade tunnel for the use of the defendant railway company.
It is admitted by the defendants that, in carrying out at least a part of their Cascade tunnel operations, the method described in the Dennis patent was employed. The…
2Cases cited9 opinions
- Morgan Envelope Co. v. Albany Perforated Wrapping Paper Co.Supreme Court of the United States · 1894
- Westinghouse Electric & Mfg. Co. v. Toledo, P. C. & L. Ry. Co.Court of Appeals for the Sixth Circuit · 1909
- Bone v. Commissioners of Marion Cty.Supreme Court of the United States · 1919
- International Flatstub Check Book Co. v. Young & Selden Co. of Baltimore CityCourt of Appeals for the Fourth Circuit · 1922
- Vanmanen v. LeonardCourt of Appeals for the Sixth Circuit · 1918
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3Cited by5 opinions
- Spring-Air Co. v. RagainsDistrict Court, W.D. Michigan · 1951
- Kawneer Co. v. Pittsburgh Plate Glass Co.District Court, W.D. Michigan · 1952
- Reynolds v. EmausDistrict Court, W.D. Michigan · 1949
- Breeden v. Attwood Brass WorksDistrict Court, W.D. Michigan · 1952
- National Brass Co. v. Michigan Hardware Co.District Court, W.D. Michigan · 1947