This bill is brought upon letters patent Ho. 465,485, dated December 22, 1891, and granted to Levy Maybaum, assignor to the plaintiff, for “means for securing against excessive losses for bad debts,” makes profert of them, and is demurred to. As the patent contains a grant under the constitution and laws of the United States “to the patentee, his heirs or assigns, for the term of seventeen years, of the exclusive right to make, use, and vend the invention or discovery throughout the.United States and the territories thereof,” and the bill alleges infringement, the defendant must be put to the statutory defenses, unless what the patent covers is so far from any patentable invention or discovery as to be void, and require no defense whatever. Rev. St. U. S. §§ 4884, 4920. A bill upon such a void patent would seem to require no answer, (Hill v. Wooster,
The invention sought to be covered by this process is of a method
But plans of indemnity against losses or parts of losses from casualty or misfortune by contracts of insurance or indemnity in various forms were in common use before, and not, in any sense, novel. Besides this, the terms of contracts rest in the agreements of those making them, and coming to such agreements is not a new art. The practice of the plan, as set forth in the specifications of the patent, seems to have been intended for insurers or guarantors, and the utility of it to consist in the proposal of such terms as would be desirable to those wanting indemnity; but the art of making proposals for contracts would not be any more patentable than that of making the contracts themselves. This patent is different in this respect from that in Munson v. Mayor, etc., 18 Blafchf. 237, 3 Fed. Rep. 338; Id.,
