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US3201566A Expired / Lapsed US ⏱️ 0.0 years remaining

Thermostatically controlled electrically heated cooking utensil

Assignee: WHITFIELD LAB Inc
•
Filing: 1964-02-18
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Granted: 1965-08-17
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Expires: 1984-02-18
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Abstract

No abstract record available.

Inventors

  • 👤 Schreyer Edward Peter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 13:22
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/10; A47J37/105

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 214 words
AN ELECTRICALLY HEATED COOKING UTENSIL COMPRISING, IN COMBINATION: (A) A METAL CONTAINER HAVING EMBEDDED IN ITS BOTTOM AN ELECTRICAL HEATING ELEMENT, (B) ELECTRICAL CONTACTS CARRIED BY THE CONTAINER AND CONNECTED TO SAID HEATING ELEMENT, (C) A DETACHABLE CONNECTOR PLUG ADAPTED TO BE REMOVABLY CARRIED BY THE CONTAINER, SAID PLUG HAVING CONTACTS COOPERABLE WITH THOSE OF THE CONTAINER TO SUPPLY ELECTRIC CURRENT TO THE HEATING ELEMENT THEREOF, (D) THERMOSTATICALLY CONTROLLED SWITCH MEANS CARRIED BY THE CONNECTOR PLUG, (E) A HEAT-RECEIVING PROBE ON THE CONNECTOR PLUG, DISPOSED IN HEAT EXCHANGING RELATION TO THE SAID SWITCH MEANS TO EFFECT ACTUATION OF THE SAME IN RESPONSE TO HEATING SNAD COOLING OF THE PROBE, (F) SAID CONTAINER BOTTOM HAVING AN ELONGATE OPEN GROOVE ADAPTED TO RECEIVE THE CONTROL PROBE, SAID GROOVE BEING OTHERWISE COMPLETELY EXPOSED AND ACCESSIBLE FROM THE EXTERIOR OF THE CONTAINER, (G) THE PROBE OF THE PLUG WHEN THE LATTER IS CARRIED BY THE CONTAINER BEING LOCATED IN AND SPACED FROM THE WALLS OF SAID GROOVE WHEREBY CONTACT THEREWITH IS RANDOM AND OF QUESTIONABLE INTIMACY, AND WHEREBY THE PROBE IS ONLY PARTIALLY SURROUNDED BY THE METAL OF THE CONTAINER AND IS SUBJECTED TO HEAT RADIATED FROM THE CONTAINER AND TO HEAT CARRIED BY THE CONVECTION FROM THE CONTAINER FOR THE PURPOSE OF ACTUATING THE THERMOSTATICALLY CONTROLLED SWITCH.

References Cited (Backward Citations)

US3007028A Cited
US3097289A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-08-16 1969-02-15 1969-08-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-08-16 1973-02-15 1973-08-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-08-16 1977-02-15 1977-08-17 $7700.00 Window Closed / Lapsed

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