Reissue patent

Definition and stakes

Portrait of Harlan F. Stone Harlan F. Stone,  Saranac Automatic Mach Corporation v…

“ But this, we think, does not meet the objection, which, more precisely stated, is that the machine and work holder patents, fairly read, do not embrace a patent for the dominating new result, the process of the reissue patent, but are patents for a particular combination of mechanical means, useful, as is that of petitioner, in availing of the process, but which, as we have said, does not involve invention. ”
Source: Wikisource

Pierce Butler,  Crown Cork Seal Company v. Ferdinand Gutmann Company…

“ Congress has been alert to protect the public from such an extension of monopoly. A reissue patent must be based on oath that an applicant's original patent failed to cover its actual invention as a result of accident, inadvertence or mistake, and runs only for the unexpired portion of a seventeen-year patent grant. The use of 'divisionals' or 'continuations,' no longer subject to the defense of laches or unreasonable delay, will permit an applicant to obtain, by a non-statutory procedural device, monopoly privileges denied by the reissue statute. ”
Source: Wikisource

Nathan Clifford,  Collar Company v. Van Dusen — Opinion of the Court

“ Unless, however, it is apparent upon the face of the new patent that the commissioner has exceeded his authority, his decision is final and conclusive, as the jurisdiction to reissue patents is vested in him subject to a single exception, that if there is such repugnancy between the old and the new patent that it must be held, as matter of legal construction, that the reissued patent is not for the same invention as that embraced and secured in the original patent, then the reissued patent is invalid. ”
Source: Wikisource

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