Complex sentence: On 31 August 1944, the patrol yacht arrived in Philadelphia and was decommissioned there on 27 September, struck from the Naval Register on 14 October and sold by WSA 14 June 1945.
Split into simpler sentences: On 31 August 1944, the patrol yacht arrived in Philadelphia and was decommissioned there on 27 September. USS Impetuous (PYc-46) was struck from the NVR on 14 October and sold by WSA 14 June 1945.