Electric toasters
Patent 3956978 Issued on May 18, 1976. Estimated Expiration Date: 
May 18, 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.
May 18, 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 References 2465577 3229614 3358584 InventorAssigneeApplicationNo. 484009 filed on 06/28/1974US Classes:99/329R, By heat responsive means219/502, Utilizing light-sensitive and/or responsive means219/508, Plural means intermittently or selectively operated219/514With solenoid meansExaminersPrimary: Envall, Roy N. Jr.Attorney, Agent or FirmForeign Application Priority Data1973-06-29 UKAbstractAn electric toaster in which a toast support bar is held down by an energized electric magnet so as to maintain bread, on the support bar, alongside electric heating elements. When the bread has been toasted to the desired degree, the electromagnet is de-energized, permitting springs to lift the support bar to pop-up the toast. The rising movement of the support bar causes a switch to operate which interrupts the electrical supply to the elements.Field of SearchUtilizing light-sensitive and/or responsive means | |
