Samuel Nelson

“ This is done every day by the ordinary mechanic in making a working machine from the patent model.
The patentee in the present case must carry his improvements farther, in order to reach invention; he must contrive the means of adapting the enlarged old organization to the new use, namely, the sawing of saw-logs, and claim, not the old parts, but the new device, by which he has produced the new results. ”

“ The 15th section of the patent law provides, that when the defendant relies in his defence on the fact of a previous invention, knowledge, or use of the thing patented, he shall give notice of the names and places of residence of those whom he intends to prove possessed the prior knowledge, and where the same was used. ”

“ Notice of the time when the person possessed the knowledge or use of the invention is not required by the act; the name of the person, and of his place of residence, and the place where it has been used, are sufficient. ”