Legal Opinion
O'Brien v. O'Brien
Court of Appeals for the Seventh Circuit
Decided March 2, 1953No. 19-2308PublishedCited by 19 opinions
1Opinion of the Court
MAJOR, Chief Judge.'
This is a suit for infringement of patent No. 2,467,849, entitled “Portable Electric Rotary Drain Cleaner,” issued April 19, 1949, to John V. O’Brien, plaintiff, and James L. von Harz. The latter has assigned his interest to the plaintiff. Defendant interposed the usual defenses of invalidity and non-infringement. The court found all five claims of the patent valid and infringed and, on July 8, 1952, entered its judgment enjoining the defendant from further infringing and ordered an accounting for general damages sustained by plaintiff by reason of said infringement. From…
2Cases cited9 opinions
- Great Atlantic & Pacific Tea Co. v. Supermarket Equipment Corp.Supreme Court of the United States · 1951
- Graver Tank & Mfg. Co. v. Linde Air Products Co.Supreme Court of the United States · 1949
- Hazeltine Research, Inc. v. Admiral Corp.Court of Appeals for the Seventh Circuit · 1950
- Independent Pneumatic Tool Co. v. Chicago Pneumatic Tool Co.Court of Appeals for the Seventh Circuit · 1952
- Land v. DollarSupreme Court of the United States · 1951
4 more not listed; retrieve them via the Exa API.
3Cited by19 opinions
- Armour & Co. v. Wilson & Co., Inc.Court of Appeals for the Seventh Circuit · 1960
- Terrell J. Reese and Reese Products, Inc. v. Elkhart Welding and Boiler Works, Inc.Court of Appeals for the Seventh Circuit · 1971
- Deep Welding, Inc. v. Sciaky Bros., Inc.Court of Appeals for the Seventh Circuit · 1969
- Jamesbury Corp. v. United StatesUnited States Court of Claims · 1975
- The University of Illinois Foundation v. Block Drug Co., Amm-I-Dent, Inc., and F. W. Woolworth Co., DefendantsCourt of Appeals for the Seventh Circuit · 1957
14 more not listed; retrieve them via the Exa API.