Legal Opinion
Simplex Electric Heating Co. v. Leonard
U.S. Circuit Court for the District of Southern New York
Decided May 9, 1910PublishedCited by 1 opinion
In Equity. Suit by the Simplex Electric Heating Company against H. Ward Leonard, the Wárd Leonard Electric Company, and the Carpenter Enamel Rheostat Company.
1Opinion of the Court
HAZEL, District Judge.
The bill charges the joint infringement by the defendants of patent No. 490,034 of January 17, 1893, issued to Thomas E. Morford and the Enamel Insulator Company for electric heater or improvement in electric insulators. The specification states:
“The invention, stated generally, consists in embedding electric conductors in an enamel of insulating material that is made to adhere to the device that is to be heated by or otherwise used in connection with an electric current and which serves to insulate the conductors while connecting them to the devica”
To establish the…
2Cases cited5 opinions
- Kokomo Fence MacHine Co. v. KitselmanSupreme Court of the United States · 1903
- Boyd v. Janesville Hay Tool Co.Supreme Court of the United States · 1895
- Union Match Co. v. Diamond Match Co.Court of Appeals for the Eighth Circuit · 1908
- American Nicholson Pavement Co. v. ElizabethUnited States Circuit Court · 1870
- Leonard v. Simplex Electric Heating Co.U.S. Circuit Court for the District of Southern New York · 1905
3Cited by1 opinion
- Abbott Coin Counter Co. v. Standard-Johnson Co.District Court, E.D. New York · 1923