US3196253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically heated cooking vessel
Assignee: Sunbeam Corp
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Filing: 1962-01-15
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Granted: 1965-07-20
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Expires: 1982-01-15
Abstract
No abstract record available.
Inventors
- 👤 Jepson Ivar
- 👤 Chester H Wickenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:46
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/10; A47J37/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A COOKING VESSEL COMPRISING A PLANE HEATING SURFACE OF GENERALLY SQUARE COMPRISING A PLANE HEATING SURFACE MENT IN THE FORM OF A SINGLE TURN LOOP SECURED IN INTIMATE HEAT EXCHANGE RELATIONSHIP WITH SAID SURFACE, SAID LOOP COMPRISING A PLURALITY OF OUTWARDLY DIRECTED CURVED LOBES ONE EXTENDING TOWARD EACH CORNER OF SAID HEATING SURFACE, ADJACENT ONES OF SAID OUTWARDLY DIRECTED LOBES BEING INTERCONNECTED BY INWARDLY DIRECTED LOBES, SAID LOOP BEING SYMMETRICALLY DISPOSED WITH RESPECT TO THE CENTER OF SAID GENERALLY SQUARE PLANE HEATING SURFACE, SAID HEATING ELEMENT BEING OF SUCH CONFIGURATION THA THE RATIO OF R1 TO R5 IS WITHIN THE RANGE OF .738 TO .871 AND THE RATIO OF R3 TO R4 IS WITHIN THE RANGE OF 0.60 AND 0.80, WHEREIN R1 DESIGNATES THE DISTANCE FROM THE CENTER OF SAID SQUARE SURFACE TO THE POINTS ON SAID INWARDLY DIRECTED LOBES NEAREST THE CENTER, R5 DESIGNATES THE DISTANCE FROM THE CENTER OF SAID
Claim 2
Dependent Claim
152 words
A COOKING VESSEL COMPRISING A PLANE HEATING SURFACE OF GENERALLY SQUARE COMPRISING A PLANE HEATING SURFACE MENT IN THE FORM OF A SINGLE TURN LOOP SECURED IN INTIMATE HEAT EXCHANGE RELATIONSHIP WITH SAID SURFACE, SAID LOOP COMPRISING A PLURALITY OF OUTWARDLY DIRECTED CURVED LOBES ONE EXTENDING TOWARD EACH CORNER OF SAID HEATING SURFACE, ADJACENT ONES OF SAID OUTWARDLY DIRECTED LOBES BEING INTERCONNECTED BY INWARDLY DIRECTED LOBES, SAID LOOP BEING SYMMETRICALLY DISPOSED WITH RESPECT TO THE CENTER OF SAID GENERALLY SQUARE PLANE HEATING SURFACE, SAID HEATING ELEMENT BEING OF SUCH CONFIGURATION THA THE RATIO OF R1 TO R5 IS WITHIN THE RANGE OF .738 TO .871 AND THE RATIO OF R3 TO R4 IS WITHIN THE RANGE OF 0.60 AND 0.80, WHEREIN R1 DESIGNATES THE DISTANCE FROM THE CENTER OF SAID SQUARE SURFACE TO THE POINTS ON SAID INWARDLY DIRECTED LOBES NEAREST THE CENTER, R5 DESIGNATES THE DISTANCE FROM THE CENTER OF SAID
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |