(1) A patent application, other than a PCT application, may be withdrawn if all of the following conditions are met:
(a) the applicant lodges a written notice of withdrawal signed by the applicant;
(b) if the application has been opposed under section 59--the Commissioner has consented to the withdrawal;
(c) if the regulations prescribe a period within which an application must not be withdrawn--the withdrawal will not occur within the prescribed period.
(2) The regulations may prescribe circumstances in which PCT applications may be withdrawn, or are to be taken to be withdrawn.