Is there any case law that supports a claim that a carburet of manganese is an invention?
Ontario, Canada
The following excerpt is from Ball v. Crompton Corset Co., 1887 CanLII 17 (ON CA):
A case cited for the appellants, Heath v. Unwin, 13 M. & W. 591, appears to me, at least in one aspect, rather against their contention. There, the plaintiff claims as his invention, “The use of carburet of manganese in any process for the conversion of iron into cast-steel.”
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