Specification.

Whereas I, A. B., of, &c., have invented (or discovered) a new and useful (art machine, &c., state here the proper name or title of the invention or discovery; or if an improvement only so state it); and the following is a full, clear and exact description of the same; (here describe the invention or discovery in such exact and clear terms, as to distinguish it from all contrivances or processes for similar purposes: correctly and fully describe the mode of operating; and the contrivances and things which are claimed as new. If the invention is a machine, explain fully the principle and several modes of appliance. Where the invention or discovery admits of illustration by drawings, refer to them here thus:) The plans and drawings accompanying this specification, show clearly all parts of the invention (or discovery). Figure No. 1 shows &c., (stating clearly what each figure illustrates).

[NOTE. The specification and drawings must be in duplicate; and the latter must bear the name of the inventor, and contain written references to the specification, and be certified by the applicant to be the drawings referred to in the specification.

Surrender for Re-Issue.

TO THE HONORABLE THE COMMISSIONER OF PATENTS FOR INVENTIONS.

The petition of A. B., of, &c., sheweth :

That your petitioner did obtain letters-patent under the seal of the patent office for a new (thrashing-machine), which letters-patent are dated the

That your petitioner now believes that the same letters-patent are inoperative, or invalid, by reason of insufficient description or specification, (or by reason of his claiming more than he had a right to claim as new), which error has arisen from inadvertence, accident or mistake, and without any fraudulent or deceptive intention.

Your petitioner therefore prays that he may be allowed to surrender the said letters-patent, and that new letters-patent may issue to him for the same invention for the residue of the period for which the original patent was issued, in accordance with the corrected description and specification herewith presented.

A. B.

(A corrected specification and delcaration must accompany this petition.)

Disclaimer.

Know all men by these presents, That I, A. B., of, &c., to whom letters-patent under the Seal of the Patent office, for a new (thrashing-machine,)

did by mistake, accident or inadvertence, and without any wilful intent to defraud or mislead the public, make my specification too broad, claiming more than that of which I was the original or first inventor, [or, claiming to be the first inventor, or discoverer of a material and substantial part of the said (thrashing-machine), of, which I was not the first inventor or discoverer, and which I have no legal or just right to claim]. Now know ye, That I, the said A. B., do hereby disclaim that part of the specification and claim which is in the following words, to wit: [Insert here that part which is disclaimed, in the words of the original. State also the extent of the interest which the disclaiming party has in the patent, whether an entire or partial interest.]

Assignment of an Entire Interest in a Patent.

To all to whom these presents shall come, A. B., of, &c., sends, greeting:

(

Whereas, the said A. B., has invented a certain ), and has applied for and obtained letterspatent from the patent office in Canada, granting to him and to his assigns the exclusive right to make and vend the same; which letters-patent are dated on the A.D. 18.

day of

And whereas, C. D., of, &c., has agreed to purchase from the said A. B. all the right, title and interest which he, the said A. B., now hath in the said invention under the said letters-patent, for the price or sum of dollars.

Now these presents witness, that for and in cɔnsideration of the said sum of dollars, by the said C. D. paid to the said A. B. at or before the sealing and delivery of these presents (the receipt whereof is hereby acknowledged), he, the said A. B., hath assigned and transferred, and by these presents doth assign and transfer, unto the said C. D., his executors, administrators and assigns, the full and exclusive right to the invention made by him, and secured to him by the said letters-patent, together with the said letters-patent, and all his interest therein or right thereto.

In witness whereof, the said A. B. hath hereunto set his hand and seal, this

day of

A. B. [L.S.]

, A.D.

(An assignment of a partial interest may be readily framed from the foregoing. Every assignment must be registered in the patent office.)

CHAPTER XIX.

WILLS AND INTESTACY.

A will is the instrument by which the owner of property declares the mode in which he desires that property to be disposed of after his death. When a man makes a will, he is called a testator; and when a woman makes a will, she is called a testa. trix. When moveable property is given by will, it is said to be bequeathed, on the other hand, when land is given, it is said to be devised. The person taking a legacy is called a legutee; but he to whom land is given is called a devisee.

Any person of sound mind may make a will; but the will of a married womon is subject to some restrictions, to be noticed presently. No person under the full age of twenty-one years can make a will of lands, but a will of personalty may be made by males at the age of fourteen, or by females at the age of twelve, if of sufficient discretion. What may amount to sufficient discretion cannot be defined here: it must remain for the decision of the proper tribunal, whenever a will is impeached on that ground. The right to dispose of landed property by will was first given by an act of Parliament called the Statute of Wills, passed in the