Van Kannel Revolving Door Co. v. Winton Hotel Co.
Court of Appeals for the Sixth Circuit
Appeal from the District Court of the United States for the Northern District of Ohio; D. C. Westenhaver, Judge. Suit in equity by the Van Kannel Revolving Door Company against the Winton Hotel Company. Decree for defendant, and complainant appeals.
1Opinion of the Court
KNAPPEN, Circuit Judge.
Suit upon reissue patent No. 14,255, February 6, 1917, to Van Kannel, plaintiff’s assignor, on collapsible revolving doors of the. “panic-proof type.” The claims in suit are Nos. 1, 2, 3, 13, 22, 23, and 24. The original patent, oí which the patent here in suit is a reissue, is No. 836,843, February 27, 1906, to Van Kannel. The defenses are (1) lack of novelty and invention, (2) invalidity of reissue, and (3) noninfringernent. The district judge held all the claims invalid for lack of novelty and invention, and dismissed the bill, without passing upon the remaining two…
2Cases cited17 opinions
- O'Reilly v. MorseSupreme Court of the United States · 1854
- Cantrell v. WallickSupreme Court of the United States · 1886
- Mahn v. HarwoodSupreme Court of the United States · 1884
- American Automotoneer Co. v. PorterCourt of Appeals for the Sixth Circuit · 1916
- Dunn Wire-Cut Lug Brick Co. v. Toronto Fire Clay Co.Court of Appeals for the Sixth Circuit · 1919
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3Cited by10 opinions
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- Fehr v. Activated Sludge, Inc.Court of Appeals for the Seventh Circuit · 1936
- Detrola Radio & Televison Corp. v. Hazeltine Corp.Court of Appeals for the Sixth Circuit · 1940
5 more not listed; retrieve them via the Exa API.