Legal Opinion

Westinghouse Electric & Mfg. Co. v. Jeffrey-De Witt Insulator Co.

Court of Appeals for the Second Circuit

Decided November 1, 1927No. 19PublishedCited by 17 opinions

1Opinion of the Court

MANTON, Circuit Judge.

This suit is

for infringement of patent No. 1,373,576, for an electric insulator. The original application was filed May 16, 1913, the application upon which this patent was granted was filed December 17, 1917, and the patent was granted April 5,1921. The invention relates to insulators for high-tension eleetrie lines, such as power transmission lines, but particularly of the suspension type. There are six claims sued on, claim 1 being typical and providing (a) a dielectric body having two end portions and a middle portion intermediate between the ends which take the…

2Cases cited11 opinions

  1. Webster Electric Co. v. Splitdorf Electrical Co.Supreme Court of the United States · 1924
  2. Chapman v. WintroathSupreme Court of the United States · 1920
  3. Woodbridge v. United StatesSupreme Court of the United States · 1923
  4. Crown Cork & Seal Co. v. Aluminum Stopper Co.Court of Appeals for the Fourth Circuit · 1901
  5. Tompkins v. St. Regis Paper Co.Court of Appeals for the Second Circuit · 1916

6 more not listed; retrieve them via the Exa API.

3Cited by17 opinions

  1. Dwight & Lloyd Sintering Co. v. GreenawaltCourt of Appeals for the Second Circuit · 1928
  2. Rome Grader & MacHinery Corp. v. J. D. Adams Mfg. Co.Court of Appeals for the Seventh Circuit · 1943
  3. Hendrickson & Nelson v. Ronning & RonningCourt of Customs and Patent Appeals · 1935
  4. Southgate v. GreeneCourt of Customs and Patent Appeals · 1932
  5. Arnold v. LangmuirCourt of Customs and Patent Appeals · 1930

12 more not listed; retrieve them via the Exa API.

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