Page:Machinery's Handbook, (6th Edition, 1924, machineryshandbo00indu).pdf/1572

1558 invention is such that drawings will make the description clearer, the applicant must furnish a drawing signed by the inventor or his attorney. If the patent office so requires, the applicant must also furnish a model of convenient size to exhibit advantageously the several parts of the invention, but a model should not be sent unless first called for by the patent office.

The applicant must take oath that he believes himself to be the original and first inventor of the invention or improvement for which he solicits a patent. He must also state of what country he is a citizen and where he resides, and whether he is the sole or joint inventor of the invention claimed. He must also state under oath that the invention has not been patented by himself or others with his knowledge or consent in this or any foreign country, and that an application for a patent has not been filed in any foreign country by himself or his legal representative more than 12 months prior to his application in this country (or four months in case of designs). If foreign applications have been filed, the country or countries where this has been done should be stated, with the date of application. This oath may be made before any person within the United States duly authorized by law to administer oaths, or, when the applicant resides in a foreign country, before any minister, chargé d'affaires, consul, or commercial agent holding commission under the Government of the United States, or before any person having an official seal and authority to administer oath in a foreign country. In the latter case, the authority of such person must be proved by a certificate of a diplomatic or consular officer of the United States.

Fees.—Fees must be paid in advance, and are as follows: On filing each original application for a patent, $15. On issuing each original patent, $20. In design cases: For three years and six months, $10; for seven years, $15; for fourteen years, $30. On every application for the reissue of a patent, $30. On filing each disclaimer, $10. For certified copies of patents and other papers in manuscript, ten cents per hundred words and twenty-five cents for the certificate; for certified copies of printed patents, eighty-five cents. For uncertified copies of specifications and drawings of patents, ten cents each. For recording every assignment, agreement, power of attorney, or other paper, of three hundred words or under, $1; of over three hundred and under one thousand words, $2; for each additional thousand words, or fraction thereof, $1. For copies of drawings, the reasonable cost of making them. The Patent Office is prepared to furnish positive photographic copies of any drawing, foreign or domestic, in the possession of the office, in sizes and at rates as follows: Large size, 10 by 15 inches, twenty-five cents; medium size, 8 by 12 inches, fifteen cents. Fee for examining and registering trademarks, $10, which includes certificate. Stamps cannot be accepted by the Patent Office in payment of fees. Stamps and stamped envelopes should not be sent to the office for replies to letters, as stamps are not required on mail matter which is sent from the Patent Office. Mail sent to the Patent Office must, of course, be stamped.

Reissue of Patents.—A reissue of a patent is granted to the original patentee, or his legal representatives, if the original specification proves to have been defective or insufficient, or if the patentee has claimed for his invention or discovery more than he had a right to claim as new, so that the original patent is invalid, provided the error has arisen from ignorance or mistake and without any fraudulent or deceptive intention. A reissue application must be made and the specifications sworn to by the inventor, the same as in the case of the original application, providing the inventor is still living.