Legal Opinion
Sims v. Mack Truck Corp.
Court of Appeals for the Third Circuit
Decided October 16, 1979No. Nos. 78-2516 — 78-2520PublishedCited by 24 opinions
1Opinion of the Court
OPINION OF THE COURT
WEIS, Circuit Judge.
Changing the discharge point of a concrete mixer from the rear to the front of the truck results in definite advantages but does not raze the roadblock of nonobviousness required for patentability. We therefore reverse a district court finding of patent validity. We find jurisdiction also to review a companion count alleging conversion of trade secrets related to the construction of concrete mixers. Because that claim contains disputed matters of fact, we vacate a summary judgment entered in favor of the defendant.
By virtue of an assignment in 1965,…
2Cases cited23 opinions
- Graham v. John Deere Co. of Kansas CitySupreme Court of the United States · 1966
- Great Atlantic & Pacific Tea Co. v. Supermarket Equipment Corp.Supreme Court of the United States · 1951
- Hotchkiss v. GreenwoodSupreme Court of the United States · 1851
- Anderson's-Black Rock, Inc. v. Pavement Salvage Co.Supreme Court of the United States · 1969
- Sakraida v. Ag Pro, Inc.Supreme Court of the United States · 1976
18 more not listed; retrieve them via the Exa API.
3Cited by24 opinions
- Metro-Goldwyn-Mayer Studios Inc. v. Grokster, Ltd.Supreme Court of the United States · 2005
- SI Handling Systems, Inc. v. HeisleyCourt of Appeals for the Third Circuit · 1985
- Den-Tal-Ez, Inc. v. Siemens Capital Corp.Supreme Court of Pennsylvania · 1989
- Board of Trade v. Dow Jones & Co.Illinois Supreme Court · 1983
- Rengo Co. Ltd. And Simon Container MacHinery Limited, in No. 80-2556 v. Molins MacHine Company, Inc., in No. 80-2557Court of Appeals for the Third Circuit · 1981
19 more not listed; retrieve them via the Exa API.