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SQUARE LINER 360°, INC. v. CHISUM

Nos. 81-2342, 81-2396.

691 F.2d 362 (1982)

SQUARE LINER 360°, INC., Appellant/Cross Appellee, v. Finis Lavell CHISUM and Chief Industries, Inc., Appellees/Cross Appellants.

United States Court of Appeals, Eighth Circuit.

Decided October 12, 1982.

Rehearing Denied December 22, 1982.

Attorney(s) appearing for the Case

Jan Stuurmans, Stuurmans & Kelly, P. A., Minneapolis, Minn., for appellant/cross-appellee.

Orrin M. Haugen, Haugen & Nikolai, Henry H. Feikema, Smith, Juster, Feikema, Malmon & Kaskvitz, Minneapolis, Minn., James Head, Head & Johnson, Tulsa, Okl., for appellees/cross-appellants.

Before MILLER, Judge, ARNOLD, Circuit Judge, and STEVENS, District Judge.

MILLER, Judge.

These appeals are from an action for declaratory judgment of patent invalidity by appellant-cross appellee Square Liner 360°, Inc. ("Square Liner") and a counterclaim by appellees-cross appellants Finis Lavell Chisum ("Chisum") and Chief Industries, Inc. ("Chief") for infringement of patent No. 3,630,066 ("'066")1 and patent No. 3,888,100 ("'100").2 After a five-week jury trial, the '066...

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