Legal Opinion
Pierce v. Allen B. Du Mont Laboratories, Inc.
District Court, D. Delaware
Decided September 15, 1959No. Civ. A. No. 1624PublishedCited by 5 opinions
1Opinion of the Court
LAYTON, District Judge.
This is an action for infringement of five patents issued to Dr. George Washington Pierce, now deceased, his wife having since been substituted as a party. The patents are No. 2,133,642, No. 2,133,-643, No. 2,133,646, No. 2,133,648 and No. 2,266,070. Patent No. 2,133,642, (’642), is the basic patent of the group and may be referred to as the basic Pieree-oscillator patent. Claims numbered 3, 24, 40, 51, 52, 54, 55, 56 and 61 to 68, inclusive, are charged to have been infringed. Also, claims 105 and 106 of the same patent, not concerned with the Pierce oscillator, are…
2Cases cited25 opinions
- Mercoid Corp. v. Mid-Continent Investment Co.Supreme Court of the United States · 1944
- Miller v. Eagle Manufacturing Co.Supreme Court of the United States · 1894
- Mercoid Corp. v. Minneapolis-Honeywell Regulator Co.Supreme Court of the United States · 1944
- Thomson-Houston Electric Co. v. Ohio Brass Co.Court of Appeals for the Sixth Circuit · 1897
- Rowell v. LindsaySupreme Court of the United States · 1885
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3Cited by5 opinions
- Helen Russell Pierce, of the Last Will and Testament of George Washington Pierce, Deceased v. Allen B. Du Mont Laboratories, IncCourt of Appeals for the Third Circuit · 1961
- Helen Russell Pierce v. American Communications Company, Inc.Court of Appeals for the First Circuit · 1960
- Helen Russell Pierce, Executric of the Last Will and Testament of George Washington Pierce, Deceased v. Aeronautical Communications Equipment, Inc.Court of Appeals for the Fifth Circuit · 1962
- Helen Russell Pierce, of the Last Will and Testament of George Washington Pierce, Deceased v. Allen B. Du Mont Laboratories, IncCourt of Appeals for the Third Circuit · 1960
- Pierce v. Aeronautical Communications Equipment, Inc.District Court, S.D. Florida · 1961