It will be seen from the foregoing extracts that Mr. Hussey's machines went early into the field in such quantities as he and other little manufacturers throughout the country, some of whom ignored the exclusive rights granted him, could put them out. They were simple, and a few castings were all that was necessary, except lumber, which was plenty in the forests of the East and in the groves of the West, to enable a country wagon maker and blacksmith to put machines into the field. Many of the earlier inventors, who began the manufacture of reapers of their own invention, followed that course and castings were sometimes brought from great distances. Mr. Hussey applied for an extension of his 1833 patent, but, not knowing the exact requirements, his application was offered too late, sixty days before the expiration of the patent being the time allotted. Knowing, we presume, but little about law, and still less about "the rules and regulations of the Patent Office"--for all his time, and constant labor with his own hands, were required in the workshop to earn a bare support,--but being very desirous to obtain an extension of his Patent before it should expire, and also having some personal acquaintance with Commissioner Ellsworth, Hussey's first application was made to him in 1845, a short time previous to his going out of office; certainly not less than twelve months before the expiration. This is proved by the annexed letter: "La Fayette, Ia., July 3, 1854. "Dear Sir:-- "Your letter of some weeks since, referring to a conversation I had with you while I was Commissioner of Patents, relative to the extention of your patent for a Reaper, would have been answered earlier, but for absence and extreme pressure of business." "If my recollection will aid you, I most cheerfully state, that before your patent expired, you consulted me as to the extension of the same. I replied that it was better to postpone an application until near the time the patent would run out, for the Office must estimate the profits of the invention during the whole term; and you accordingly postponed it. I regret you postponed it too long. The publication of thirty days before the patent expired, was a rule as published by myself. If you have lost your opportunity for relief through (the) Patent Office, you must of course go to Congress. I have always regarded your improvement as valuable, and that the country is greatly indebted to your persevering efforts, notwithstanding the obstacles presented. "Yours respectfully, "HENRY L. ELLSWORTH. "Mr. Obed Hussey, Balto., Md." Hussey acted on this official advice, and did "postpone an application until near the time the patent would run out"--literally so, for he was not advised of even the "thirty days' rule." [Sidenote: Why Mr. Hussey's Application Was Late]