US3384735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface heating device
Assignee: General Electric Co
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Filing: 1966-04-29
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Granted: 1968-05-21
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Expires: 1986-04-29
Abstract
No abstract record available.
Inventors
- 👤 Harrison K Linger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:32
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/68; H05B3/681
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A SURFACE HEATING DEVICE COMPRISING: (A) MEANS PROVIDING A GENERALLY FLAT UPPER SURFACE INTENDED TO CONTACT A COOKING VESSEL FOR HEATING PRIMARILY BY CONDUCTION; (B) INDEPENDENT SUPPORT MEANS FOR SUPPORTING THE VESSEL; (C) MEANS FOR CAUSING HEATING OF SAID UPPER SURFACE; (D) AN ON-OFF SYSTEM FOR CONTROLLING OPERATION OF SAID HEATING MEANS; AND (E) MEANS RESPONSIVE TO SAID ON-OFF SYSTEM FOR CHANGING THE VERTICAL SPACING OF SAID INDEPENDENT MEANS AND SAID SURFACE; (I) SAID CHANGING MEANS CAUSING SAID SURFACE TO BE AT LEAST AS HIGH AS SAID INDEPENDENT SUPPORT MEANS IN THE "ON" CONDITION OF SAID ON-OFF SYSTEM; (II) SAID CHANGING MEANS PROVIDING VERTICAL SPACING OF SAID INDEPENDENT SUPPORT MEANS AND SAID SURFACE IN THE "OFF" CONDITION OF SAID ON-OFF SYSTEM, WITH SAID INDEPENDENT SUPPORT MEANS ABOVE SAID SURFACE, WHEREBY HEAT CONDUCTION FROM SAID UPPER SURFACE TO THE VESSEL SUBSTANTIALLY INTERRUPTED.
Claim 2
Dependent Claim
141 words
A SURFACE HEATING DEVICE COMPRISING: (A) MEANS PROVIDING A GENERALLY FLAT UPPER SURFACE INTENDED TO CONTACT A COOKING VESSEL FOR HEATING PRIMARILY BY CONDUCTION; (B) INDEPENDENT SUPPORT MEANS FOR SUPPORTING THE VESSEL; (C) MEANS FOR CAUSING HEATING OF SAID UPPER SURFACE; (D) AN ON-OFF SYSTEM FOR CONTROLLING OPERATION OF SAID HEATING MEANS; AND (E) MEANS RESPONSIVE TO SAID ON-OFF SYSTEM FOR CHANGING THE VERTICAL SPACING OF SAID INDEPENDENT MEANS AND SAID SURFACE; (I) SAID CHANGING MEANS CAUSING SAID SURFACE TO BE AT LEAST AS HIGH AS SAID INDEPENDENT SUPPORT MEANS IN THE "ON" CONDITION OF SAID ON-OFF SYSTEM; (II) SAID CHANGING MEANS PROVIDING VERTICAL SPACING OF SAID INDEPENDENT SUPPORT MEANS AND SAID SURFACE IN THE "OFF" CONDITION OF SAID ON-OFF SYSTEM, WITH SAID INDEPENDENT SUPPORT MEANS ABOVE SAID SURFACE, WHEREBY HEAT CONDUCTION FROM SAID UPPER SURFACE TO THE VESSEL SUBSTANTIALLY INTERRUPTED.
References Cited (Backward Citations)
US2733332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |