Legal Opinion
In Re Yarn Processing Patent Validity Litigation
District Court, S.D. Florida
Decided June 12, 1979No. M.D.L. Docket 82PublishedCited by 2 opinions
1Opinion of the Court
MEMORANDUM OPINION ON PURGE
ATKINS, Chief Judge.
The history of this litigation is complex and has been dealt with in various other opinions. 1
Lex Tex is the owner of three double heater patents, 3,091,912, 3,077,724 and 3,472,011, which involve the false twist processing method of producing synthetic yarns. 2 The ’912 and '724 patents were assigned to Lex Tex by Leesona Corporation of Warwick, Rhode Island, and the ’Oil patent was acquired from the British company of Ernest Scragg and Sons, Ltd. Lex Tex had previously sued several producers of textured yarn called throwsters for infringement…
2Cases cited22 opinions
- Beacon Theatres, Inc. v. WestoverSupreme Court of the United States · 1959
- Morton Salt Co. v. G. S. Suppiger Co.Supreme Court of the United States · 1942
- United States v. Line Material Co.Supreme Court of the United States · 1948
- B. B. Chemical Co. v. EllisSupreme Court of the United States · 1942
- In Re Yarn Processing Patent Validity Litigation. Sauquoit Fibers Company v. Leesona Corporation, Kayser-Roth Corporation (In Its Own Name and D/B/A Kayser-Roth Hosiery Companyand Kayser-Roth Hosiery Co., Inc.) v. Leesona Corporation, Leesona Corporation v. The Duplan CorporationCourt of Appeals for the Fifth Circuit · 1974
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3Cited by2 opinions
- J.P. Stevens Company, Inc., Badische Corporation and Burlington Industries, Inc. v. Lex Tex Ltd., Inc.Court of Appeals for the Federal Circuit · 1987
- F. E. L. Publications, Ltd. v. Catholic Bishop of ChicagoDistrict Court, N.D. Illinois · 1981