Kirsch Mfg. Co. v. Gould Mersereau Co.

HAND, Circuit Judge.

This appeal arises on the usual suit in equity upon a patent issued to C. W. Kirsch on September 18, 1917 (No. 1,240,582). It involves only claim 7, which reads as follows:

“A sectional curtain rod, comprising two similar tubular end members, one thereof of a size to be telescopically received within the other, and a coupling member interposed between tbe two end members fitting telescopically within the larger of said end members at one end, and fitting telescopically upon tbe other end member at its other end.”

There had for some years been curtain rods circular in section…