Perko, Inc.
Records under this name other than patents Perko, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US D665,113 | Boat running light Term ended Term ended Aug 7, 2026 · From the USPTO record | Term ended | Term ended Aug 7, 2026 | From the USPTO record |
| US D652,161 | Boat running light Term ended Term ended Jan 10, 2026 · From the USPTO record | Term ended | Term ended Jan 10, 2026 | From the USPTO record |
| US 7,066,504 | Slam latch and strike assembly Term ended Term ended Mar 1, 2024 · From the USPTO record | Term ended | Term ended Mar 1, 2024 | From the USPTO record |
| US D512,300 | Lock for fuel tanks Term ended Term ended Dec 6, 2019 · From the USPTO record | Term ended | Term ended Dec 6, 2019 | From the USPTO record |
| US 4,280,028 | Boat battery selector switch combined with lock Term ended Term ended no later than Jul 21, 2001 · Low confidence | Term ended | Term ended no later than Jul 21, 2001 | Low confidence |
| US 4,424,424 | Boat battery selector switch combined with lock Term ended Term ended no later than Jan 3, 2004 · Low confidence | Term ended | Term ended no later than Jan 3, 2004 | Low confidence |
| US 4,500,947 | Tri spherical lens assembly Term ended Term ended no later than Feb 19, 2005 · Low confidence | Term ended | Term ended no later than Feb 19, 2005 | Low confidence |
| US 5,275,213 | Fuel filling and venting device Term ended Term ended no later than Jan 4, 2014 · Low confidence | Term ended | Term ended no later than Jan 4, 2014 | Low confidence |
| US 5,295,880 | Flushing valve for inboard boat engines Term ended Term ended no later than Mar 22, 2014 · Low confidence | Term ended | Term ended no later than Mar 22, 2014 | Low confidence |
| US 5,327,946 | Fuel filling and venting device with surge protector Term ended Term ended no later than Jul 12, 2014 · Low confidence | Term ended | Term ended no later than Jul 12, 2014 | Low confidence |