...in which the same is executed; nny such assignment shall be void as against any subsequent purchaser for a valuable consideration, without notice, unless it is recorded in the Patent Office within three months from date thereof. The Commissioner shall keep a record of such assignments....

...be recorded in the Copyright Office within sixty days after its execution, " in default of which it shall be void as against any subsequent purchaser...mortgagee for a valuable consideration, without notice" (Revised Statutes, section 4955). The original instrument of assignment must be sent to be placed on...

...the office of the Librarian of Congress within sixty days after its execution; in default of which it shall be void as against any subsequent purchaser...mortgagee for a valuable consideration, without notice. SEC. 4956. No person shall be entitled to a copyright unless he shall, 35 before publication, deliver...

...calendar months after its execution without the limit- of the United States, in default of which it shall be void as against any subsequent purchaser...mortgagee for a valuable consideration, without notice, whose assignment has been duly recorded. SEC. 43. That in place of the original instrument of assignment...

...calendar months after its execution without the limits of the United States, In default of which it shall be void as against any subsequent purchaser...mortgagee for a valuable consideration, without notice, whose assignment has been duly recorded.] Sec. 10. Asxianments, grants, licenses, and mortgages of...

...calendar months after it> execution without the limits of the United States, in default of which it shall be void as against any subsequent purchaser...mortgagee for a valuable consideration, without notice, whose assignment, grant, or conveyance has been duly recorded and who purchased prior to the recording...

...the rule as amended will read as follows : 185. An assignment, grant, or conveyance of a patent will be void as against any subsequent purchaser or mortgagee...for a valuable consideration without notice unless recorded in the Patent Office within three months from the date thereof. Columbia, or any commissioner...

...an application for registration has been or may be filed is transferred by an instrument in writing. An assignment, grant, or conveyance shall be void...against any subsequent purchaser or mortgagee for valuable consideration without notice, unless it is recorded in the Office of the Administrator within...

...of an assignment, grant, conveyance, or mortpge. Idi An assignment, grant, conveyance, or mortgage shall be void as against any subsequent purchaser...notice, unless it is recorded in the Office of the Admintsiraior within three months from its date of execution or prior io the date of such subsequent...

...an application for registration has been or may be filed Is transferred by an instrument In writing. An assignment, grant, or conveyance shall be void...against any subsequent purchaser or mortgagee for valuable consideration without notice, unless It Is recorded In the Office of the Administrator within...