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GENERAL INSTRUMENT CORPORATION v. HUGHES AIRCRAFT CO.

No. 6999.

399 F.2d 373 (1968)

GENERAL INSTRUMENT CORPORATION, Defendant, Appellant, v. HUGHES AIRCRAFT COMPANY, Plaintiff, Appellee.

United States Court of Appeals First Circuit.

July 18, 1968.

Attorney(s) appearing for the Case

W. Houston Kenyon, Jr., New York City, with whom Harold James, Theodore S. Kenyon, Kenyon & Kenyon, New York City, and Choate, Hall & Stewart, Boston, Mass., were on brief, for appellant.

Dugald S. McDougall, Chicago, Ill., with whom Benjamin A. Smith, Providence, R. I., was on brief, for appellee.

Before ALDRICH, Chief Judge, McENTEE and COFFIN, Circuit Judges.

COFFIN, Circuit Judge.

Defendant appeals from a judgment of the U. S. District Court for the District of Rhode Island declaring plaintiff's two patents, North and Barnes, valid and infringed. While both patents relate to semiconductor devices, the issues as to each warrant separate discussion.

I. The North Patent

The North patent (No. 2,694,168, applied for March 31, 1950 by Harper Q. North and Justice N. Carman, Jr., issued November 9, 1954) describes...

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