Should a partnership fail, the general rule with respect to the assets is the partnership property must be used to pay partnership debts, and the individual property of partners to pay their individual debts. If a partner has anything left after paying his individual debts, it must be devoted to paying the partnership debts. If the partnership has anything left after paying its debts, this belongs to the partners in accordance with their agreement in contributing it and the earnings, and must be devoted to the payment of their individual debts.

Lastly concerning the authority of a liquidating partner. He can do many things, give renewal notes, make indorsements, collect debts due the partnership, and even revive an outlawed debt. Of course the affairs of a partnership may be settled by some other person than a partner; not infrequently a receiver is appointed who acts under the order of the court that appointed him.

An agreement between a liquidating partner and the other partners, to take all the property and pay all the debts, is limited in its effect to themselves and does not affect others. After the partnership assets have been transferred to a liquidating partner, or to any other person for liquidation, a debtor who has notice of the transfer is not justified in making a settlement with any one else. And if he should do so, the liquidator could require him to pay again to himself.

Patent.—In the United States the thing patentable is a new and useful art, machine, manufacture or composition of matter, or new and useful improvement thereof, or new, original and ornamental design for an article of manufacture. An idea, principle or law of nature is not patentable, but only the means for utilizing the idea or principle. Many a great discovery has slipped away from the inventor or discoverer, because he sought to hold the discovery or invention of the principle as his own, instead of limiting his claim to the means or methods of putting his principle into use. Morse's invention of telegraphy is one of them. An art or process is patentable as well as machinery, though the inventor may not know the abstract principles involved in his art. But he must know and describe the steps by which the result is accomplished. A composition of matter is a mechanical mixture or chemical combination of two or more substances; and an improvement is an addition to, or change in, a known art, machine, manufacture or composition of matter, which produces a useful result and is patentable if it amounts to invention. Lastly "a patentable design may consist of a new and ornamental shape given to an article of manufacture, or of an ornamentation to be placed upon an article of old shape." It is said that the law relating to this subject intends that the patentability of a design shall be determined by its appeal to the eyes of the ordinary man, and not to the eyes of a jury of artists. Design patents are granted for different periods, three years and a half, seven years and fourteen years, as the applicant may elect.

The subject matter of a patent must be new and useful. It must be new not only to the patentee, but to all the people in this country, and at the time he filed his invention. The federal law, however, secures a patentee who had no knowledge that his invention had been discovered abroad and which had not been patented there, nor described in a printed publication. Before the enactment of this law a patent was not granted without showing that the applicant was the original inventor with relation to every part of the world.

Much has been said concerning the novelty of an invention. This may be in the use of an old means in a new way; or a change of shape or form to produce new functions and results, but the changes must amount to invention, which is more than mere novelty.

A foreign patent in order to invalidate an American patent must antedate the invention patented. A foreign patent exists as a patent only as of the date when the invention was published. In England an invention is not patented within the meaning of the act of Congress until the enrollment of the complete specification.

What is meant by a prior publication? It is a printed book, newspaper or document of a public nature disclosing the invention intended and actually employed for the purpose of informing the public. Publication in a book of general circulation is sufficient; business catalogues or circulars are not such publications as are meant in the law.

To defeat a patent on the ground of want of novelty the proof of prior use or knowledge must be convincing, sufficient to establish the fact beyond a reasonable doubt. The recollection of one witness concerning the peculiar construction of a piece of machinery, especially if the structure is one of complex character, is not enough evidence to defeat a patent. Much less evidence, however, might be sufficient to prove that a very simple invention had been anticipated.

To justify the granting of a patent it must be useful. If the invention be frivolous or pernicious, the inventor cannot secure for it legal protection. The use of the invention must not be contrary to public health or morals. It is not needful that the invention should be the best of its kind, or that it should accomplish all that the inventor claims for it. Furthermore, its utility depends on the state of the art at the time of making the claim or issuing the patent; its subsequent inutility does not invalidate the patent. Extensive use is evidence of utility. The presumption of law favors a patent, and the burden of proof is on the one attacking it to show that it is not useful. The infringement of an invention is in effect an admission of utility, because use implies utility.