(a) It is desirable that all parts of the complete application be deposited in the Office together; otherwise, a letter must accompany each part, accurately and clearly connecting it with the other parts of the application. See Sec. 1.53 (f) and (g) with regard to completion of an application.
(b) Applicant will be informed of the application number and filing date by a filing receipt, unless the application is an application filed under Sec. 1.53(d). A letter limited to a request for a filing receipt may be signed by a juristic applicant or patent owner. [62 FR 53188, Oct. 10, 1997, as amended at 78 FR 62399, Oct. 21, 2013]