Legal Opinion

Entron on Maryland, Inc. v. Jerrold Electronics Corporation

Court of Appeals for the Fourth Circuit

Decided October 13, 1961No. 8302PublishedCited by 43 opinions

1Opinion of the Court

SOBELOFF, Chief Judge.

The two patents here in suit relate to a device used in effecting a tap-off of high frequency signals from a coaxial transmission line. Its primary use is in supplying the necessary impulse to an individual television set by connecting an auxiliary cable to the main line. The device, commercially known as the Fastee, is covered by U.S. Patent Nos. 2,694,-182 and 2,694,183. The application for the first, called “Impedance-Matching Tap-Off Coupler for Wave Transmission Lines,” was filed on February 20, 1953, and for the second, an improvement patent, called “Tap-Off…

2Cases cited18 opinions

  1. Graver Tank & Mfg. Co. v. Linde Air Products Co.Supreme Court of the United States · 1950
  2. Great Atlantic & Pacific Tea Co. v. Supermarket Equipment Corp.Supreme Court of the United States · 1951
  3. Loom Co. v. HigginsSupreme Court of the United States · 1882
  4. Diamond Rubber Co. of New York v. Consolidated Rubber Tire Co.Supreme Court of the United States · 1911
  5. Aro Manufacturing Co. v. Convertible Top Replacement Co.Supreme Court of the United States · 1961

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3Cited by43 opinions

  1. Servo Corporation of America, and Cross-Appellant v. General Electric Company, and Cross-AppelleeCourt of Appeals for the Fourth Circuit · 1964
  2. Oliver F. Marston v. J. C. Penney Company, Inc., Oliver F. Marston v. J. C. Penney Company, Inc.Court of Appeals for the Fourth Circuit · 1965
  3. Heyl & Patterson, Incorporated, and Cross-Appellee v. McDowell Company, Incorporated, and Norfolk and Western Railway Company, and Cross-AppellantsCourt of Appeals for the Fourth Circuit · 1963
  4. Power Curbers, Inc. v. E. D. Etnyre & Co. And A. E. Finley & Associates, Inc.Court of Appeals for the Fourth Circuit · 1962
  5. Berry Brothers Corporation, and Cross-Appellee v. Paul L. Sigmon, Trading as Sigmon Hosiery Manufacturing Company, and Cross-AppellantCourt of Appeals for the Fourth Circuit · 1963

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