1836, ch. 357, 5 Stat. 122, which provided for a surrender and the issuing of a new patent “ for the same invention,” “ in accordance with the patentee’s corrected description and specification.” This provision was repeated in § 53 of the act of July 8, 1870, ch. 230, 16 Stat. 205, now § 4916 of the Revised Statutes, with the additional 'enactment that “ no new matter shall be introduced into the specification.” But where new matter was, even before the act of 1870, introduced into the description, and in such manner as to enlarge the claim, and cause the patent to. be not “ for the same invention,” the reissue was invalid to the extent that it was not for the same invention.
It is. quite clear that Allen had not, before the granting of the original patent, made any machine in which the die D was stationary and the bunter movable. If that arrangement was a “ new improvement of the original invention,” and was invented by Allen, and after the date of the original patent, he could, under § 1,3 of the act of 1836, have had a “ description and specification” of it-“.annexed to the original description, and specification,” on like proceedings as in the casé of an, original application, and it would have had “ the same effect, in law,” from “ the time of its being annexed and recorded,” “as though it had been embraced in the. original description and specification;” or he could have applied for a new patent for the improvement. Such last named provision' of § 13 of the act of 1836 was repealed by the act of 1870, and was not reenacted therein, nor is it found in the Revised Statutes. But it was never lawful to cover, by the claims of a reissue, an improvement made after the granting of the original patent.
The statute in force in regard to disclaimers, when the disclaimers were filed in this case, was § 54 of the act of 1870, which provided, “ that whenever, through inadvertence, accident or mistake, and without any fradulent or deceptive intention, a patentee has claimed more than that of which he was the original or first inventor or discoverer, his patent-shall be valid for all that part which is truly and. justly his own, provided the same is a material or substantial part of the thing patented; and any such patentee, his heirs or assigns, whether