Legal Opinion
Sweetheart Plastics, Inc. v. Illinois Tool Works, Inc.
District Court, S.D. New York
Decided May 3, 1967No. 66 Civil 2559PublishedCited by 28 opinions
1Opinion of the Court
WEINFELD, District Judge.
Plaintiff, Sweetheart Plastics, Inc. (“Sweetheart Plastics”), commenced this action for a declaratory judgment decreeing the invalidity and noninfringement of two patents of nestable or stacking cups owned by the defendant used in the production of thin-wall thermoplastic containers. The same two patents are the subject of an infringement suit brought by the defendant in the United States District Court for the Northern District of Illinois against Maryland Cup Corporation (“Maryland Cup”), of which plaintiff is a wholly-owned subsidiary, and Sweetheart Cup…
2Cases cited39 opinions
- International Shoe Co. v. WashingtonSupreme Court of the United States · 1945
- Landis v. North American Co.Supreme Court of the United States · 1936
- Perkins v. Benguet Consolidated Mining Co.Supreme Court of the United States · 1952
- Kerotest Manufacturing Co. v. C-O-Two Fire Equipment Co.Supreme Court of the United States · 1952
- Norwood v. KirkpatrickSupreme Court of the United States · 1955
34 more not listed; retrieve them via the Exa API.
3Cited by28 opinions
- Reiffin v. Microsoft Corp.District Court, District of Columbia · 2000
- Ontel Products, Inc. v. Project Strategies Corp.District Court, S.D. New York · 1995
- Sweetheart Plastics, Inc. v. Illinois Tool Works, Inc.Court of Appeals for the First Circuit · 1971
- Don King Productions, Inc. v. DouglasDistrict Court, S.D. New York · 1990
- MOBIL OIL CORPORATION. v. WR Grace & CompanyDistrict Court, S.D. Texas · 1971
23 more not listed; retrieve them via the Exa API.