1.423 (pre‑AIA) When the inventor is insane or legally incapacitated.
[Editor Note: Not applicable to patent applications filed under 35 U.S.C. 111(a) or 363 on or after September 16, 2012*]
In case an inventor is insane or otherwise legally incapacitated, the legal representative (guardian, conservator, etc.) of such inventor may file an international application which designates the United States of America.