US3191004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically heated immersible warming unit
Assignee: Corning Glass Works
•
Filing: 1962-10-12
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Granted: 1965-06-22
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Expires: 1982-10-12
Abstract
No abstract record available.
Inventors
- 👤 James P Hocker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:25
CPC Classifications
A; A47; A47J; A47J27/00; A47J27/004; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; H; H05; H05B; H05B3/00; H05B3/78
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
AN IMMERSIBLE ELECRIC WARMING UNIT COMPRISING A PLATE OF LOW EXPANSION CERAMIC MATERIAL EMBODIED IN A SHALLOW-WALLED SHELL WHOSE INTERIOR BOTTOM SURFACE IS ADAPTED FOR THE SUPPORT OF FOOD SERVING CONTAINERS, A HEATING ELEMENT ADHERED TO THE EXTERIOR BOTTOM SURFACE OF SAID SHELL, MOISTURE IMPERVIOUS AND ELECTRICALLY INSULATING MEANS BONDED TO SAID HEATING ELEMENT, HEAT INSULATING MEANS BONDED TO SAID MOISTURE IMPERVIOUS MEANS, AND IMPERVIOUS ELECTRICAL TERMINAL MEANS, SAID TERMINAL MEANS BEING ELECTRICALLY CONNECTED TO SAID HEATING ELEMENT.
Claim 2
Dependent Claim
78 words
AN IMMERSIBLE ELECRIC WARMING UNIT COMPRISING A PLATE OF LOW EXPANSION CERAMIC MATERIAL EMBODIED IN A SHALLOW-WALLED SHELL WHOSE INTERIOR BOTTOM SURFACE IS ADAPTED FOR THE SUPPORT OF FOOD SERVING CONTAINERS, A HEATING ELEMENT ADHERED TO THE EXTERIOR BOTTOM SURFACE OF SAID SHELL, MOISTURE IMPERVIOUS AND ELECTRICALLY INSULATING MEANS BONDED TO SAID HEATING ELEMENT, HEAT INSULATING MEANS BONDED TO SAID MOISTURE IMPERVIOUS MEANS, AND IMPERVIOUS ELECTRICAL TERMINAL MEANS, SAID TERMINAL MEANS BEING ELECTRICALLY CONNECTED TO SAID HEATING ELEMENT.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |