4 According to the R.O.C. Patent Act, which of the following statements about patent applications is incorrect?
(A) A patent application for invention shall relate to one invention. Two or more inventions so linked as to form a single general inventive concept may be filed in one application.
(B) The term of a utility model patent will not expire until the end of ten years after the patent application was made.
(C) Any person within three year after the filing date of a patent application for invention may make a request with the Intellectual Property Office for substantive examination of the patent application.
(D) The Intellectual Property Office may not advance the laying-open of a patent application at the request of the applicant.