Patent US3363307A successfully refreshed from Google Patents.
US3363307A
Expired / Lapsed
US
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Method of making electrically heated cooking vessels
Assignee: Composite Metal Products Inc
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Filing: 1963-04-08
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Granted: 1968-01-16
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Expires: 1983-04-08
Abstract
No abstract record available.
Inventors
- 👤 John B Ulam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:32
CPC Classifications
B; B23; B23K; B23K31/00; B23K31/12; B23K2101/00; B23K2101/04; B23K2101/12; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49083
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A METHOD OF FORMING AN ELECTRICALLY HEATED COOKING VESSEL COMPRISING THE STEPS OF FORMING A VESSEL FROM A SHEET OF ALUMINUM COATED ON BOTH SIDES WITH SHEETS OF STAINLESS STEEL, REMOVING FROM THE BOTTOM SURFACE OF SAID VESSEL A SUFFICIENT AMOUNT OF STAINLESS STEEL TO EXPOSE THE ALUMINUM CORE OVER THE AREA TO BE COVERED BY A HEATING ELEMENT, ENCASING THE HEATING ELEMENT IN AN ALUMINUM SHEATH, APPLYING A LAYER OF BRAZING METAL BETWEEN THE SHEATH AND THE EXPOSED ALUMINUM OF THE COOKING VESSEL AND HEATING TO BRAZE THE ELEMENT TO THE EXPOSED ALUMINUM.
Claim 2
Independent Claim
94 words
A METHOD OF FORMING AN ELECTRICALLY HEATED COOKING VESSEL COMPRISING THE STEPS OF FORMING A VESSEL FROM A SHEET OF ALUMINUM COATED ON BOTH SIDES WITH SHEETS OF STAINLESS STEEL, REMOVING FROM THE BOTTOM SURFACE OF SAID VESSEL A SUFFICIENT AMOUNT OF STAINLESS STEEL TO EXPOSE THE ALUMINUM CORE OVER THE AREA TO BE COVERED BY A HEATING ELEMENT, ENCASING THE HEATING ELEMENT IN AN ALUMINUM SHEATH, APPLYING A LAYER OF BRAZING METAL BETWEEN THE SHEATH AND THE EXPOSED ALUMINUM OF THE COOKING VESSEL AND HEATING TO BRAZE THE ELEMENT TO THE EXPOSED ALUMINUM.
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) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |