MORTON, Circuit Judge.
This is an appeal by the plaintiffs in a patent suit from a final decree holding two patents invalid and dismissing the bill. The patents sued on were No. 1,141,402 for "Electrolytic Apparatus Employing Filmed Electrodes" dated June 1, 1915 on an application filed June 19, 1913, expired since suit was brought; and No, 1,784,674 for "Film Formation and Operation of Electrolytic Condensers," and other apparatus, dated December 9, 1930, on application...
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