Summary

Joseph McKenna Leeds Catlin Company v. Victor Talking Machine Company…

To use the machine, of course, but it is the concession of the argument of petitioner that he may not reconstruct it. Has he a license to repair deterioration, and when does repair become reconstruction? It would seem that, on principle, when deterioration of an element has reached the point of unfitness, there is a destruction of the combination, and a renewal of the element is a reconstruction of the combination. And it would also seem on principle that there could be no license implied from difference in the durability of the elements or periodicity in their use.
Source: Wikisource

Joseph McKenna Leeds Catlin Company v. Victor Talking Machine Company…

Whoever uses it without permission is an infringer of it. It may be well here to get rid of a misleading consideration. It can make no difference as to the infringement or noninfringement of a combination that one of its elements or all of its elements are unpatented. For instance, in the case at bar the issue between the parties would be exactly the same, even if the record disc were a patented article which petitioner had a license to use or to which respondent had no rights independent of his right to its use in the combination.
Source: Wikisource

Joseph McKenna Leeds Catlin Company v. Victor Talking Machine Company…

Its solution depends upon the application of some rudimentary principles of patent law.
A combination is a composition of elements, some of which may be old and others new, or all old or all new. It is, however, the combination that is the invention, and is as much a unit in contemplation of law as a single or noncomposite instrument.
Source: Wikisource

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