Cooking oil recovery system
Patent 3968741 Issued on July 13, 1976. Estimated Expiration Date: 
July 13, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 13, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorApplicationNo. 537256 filed on 12/30/1974US Classes:99/330, Of cooking fluid210/186, External of casing99/408With crumb or sediment segregating or handlingExaminersPrimary: Wyse, Thomas G.Attorney, Agent or FirmAbstractContinuously flowing cooking oil is recovered by passing the oil through a series of filters, one of which contains a carbonaceous material, such as bone char. The oil may be simultaneously heated during each filtering step, and the acidity of the oil may be reduced to avoid rancity. | |
