Legal Opinion
Steffan v. Weber Heating & Sheet Metal Co.
Court of Appeals for the Eighth Circuit
Decided October 29, 1956No. 15551PublishedCited by 14 opinions
1Opinion of the Court
VAN OOSTERHOUT, Circuit Judge.
This is an appeal from a judgment dismissing plaintiffs’ complaint in an action charging defendants infringed United States Letters Patent issued plaintiffs for a keeper mechanism. While other patent infringements were charged in the complaint, it was stipulated that for the purposes of the present case plaintiffs rely only upon Claims 1 and 21 of Patent No. 2,678,843. The defense to the complaint is that the patent relied upon by the plaintiffs is invalid for want of invention. Jurisdiction is based upon 35 U.S.C. § 281, and 28 U.S.C. § 1338.
*602The record discloses…
2Cases cited11 opinions
- Great Atlantic & Pacific Tea Co. v. Supermarket Equipment Corp.Supreme Court of the United States · 1951
- Cuno Engineering Corp. v. Automatic Devices Corp.Supreme Court of the United States · 1942
- Graver Tank & Mfg. Co. v. Linde Air Products Co.Supreme Court of the United States · 1949
- Dean A. Lyon v. Bausch & Lomb Optical Co.Court of Appeals for the Second Circuit · 1955
- Trico Products Corporation v. Delman Corporation Delman Corporation v. Trico Products CorporationCourt of Appeals for the Eighth Circuit · 1950
6 more not listed; retrieve them via the Exa API.
3Cited by14 opinions
- Armour & Co. v. Wilson & Co., Inc.Court of Appeals for the Seventh Circuit · 1960
- Robert E. Caldwell, an Individual, and Caldwell Manufacturing Company, a Corporation v. Kirk Manufacturing Company, a CorporationCourt of Appeals for the Eighth Circuit · 1959
- Kell-Dot Industries, Inc. v. George O. Graves, D/B/A Michiana MillsCourt of Appeals for the Eighth Circuit · 1966
- Cold Metal Products Company and the Youngstown Research and Development Company v. E. W. Bliss CompanyCourt of Appeals for the Sixth Circuit · 1960
- United Parts Manufacturing Company v. Lee Motor Products, Inc., and Joseph KuminCourt of Appeals for the Sixth Circuit · 1959
9 more not listed; retrieve them via the Exa API.