Legal Opinion
Callahan v. Nesbitt
Court of Appeals for the Third Circuit
Decided August 4, 1924No. 3104PublishedCited by 5 opinions
1Opinion of the Court
WOOLLEY, Circuit Judge.
This is an appeal from a decree dismissing the bill in a suit for infringement of Letters Patent No. 1,390,758 granted the plaintiff for thermostatic control of dampers for unit ventilators of the kind installed in school rooms and public halls where it is desirable to have the air, in volume and temperature, automatically regulated by the temperature of the room. Claim 8 is typical of- the claims in suit. It reads as follows:
• “A ventilating unit comprising a casing having a blower and motor chamber, an inlet thereto, a heating chamber below the motor chamber, an…
2Cases cited4 opinions
- Elizabeth v. Pavement Co.Supreme Court of the United States · 1878
- Reckendorfer v. FaberSupreme Court of the United States · 1876
- John E. Thropp's Sons Co. v. SeiberlingSupreme Court of the United States · 1924
- Stilwell-Bierce & Smith-Vaile Co. v. Eufaula Cotton Oil Co.Court of Appeals for the Sixth Circuit · 1902
3Cited by5 opinions
- Sperry Rand Corp. v. Bell Telephone Laboratories, Inc.District Court, S.D. New York · 1962
- Wilkie v. Manhattan Rubber Mfg. Co.Court of Appeals for the Third Circuit · 1926
- Watts v. University of DelawareDistrict Court, D. Delaware · 1979
- Herman Nelson Corp. v. American Blower Corp.Court of Appeals for the Sixth Circuit · 1936
- Herman Nelson Corp. v. John J. Nesbitt, Inc.District Court, E.D. Michigan · 1933