Electromagnetic engine
Patent 4187440 Issued on February 5, 1980. Estimated Expiration Date: 
June 8, 1998. 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.
June 8, 1998. 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 References 2588753 3247406 3437044 3675031 3681629 InventorApplicationNo. 05/913672 filed on 06/08/1978US Classes:310/24, Plural cores310/34, Solenoid and core310/35Successively energized solenoid coilsExaminersPrimary: Duggan, Donovan F.Attorney, Agent or FirmInternational ClassesH02K 7/06 (20060101)H02K 33/14 (20060101) H02K 33/00 (20060101) H02K 7/065 (20060101) AbstractIntermediate ram operated electromagnetically connects at least two cylinders to operate them reciprocally and drive a vehicle or the like. | |
