NASH ENGINEERING CO. v. W. D. CASHIN & CO.

No. 1891.

3 F.2d 686 (1925)

NASH ENGINEERING CO. v. W. D. CASHIN & CO. et al.

District Court, D. Massachusetts.

January 21, 1925.


Attorney(s) appearing for the Case

Southgate & Southgate, of New York City, for plaintiff.

Fish, Richardson & Neave and J. L. Stackpole, all of Boston, Mass., and Lynn A. Williams, of Chicago, Ill., for defendants.


LOWELL, District Judge.

This is a bill in equity to restrain the infringement of reissued letters patent No. 15,637, granted June 26, 1923, to L. C. Jennings, and assigned to the plaintiff. The patent relates to a so-called vacuum heating system. Such a system depends for its operation on establishing a partial vacuum in the return lines from the radiators in a steam heating system. Its main features have been well known for some years. They comprise a low-pressure...

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