US3148676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unit for maintaining food at a constant temperature
Assignee: Crimsco Inc
•
Filing: 1962-12-10
•
Granted: 1964-09-15
•
Expires: 1982-12-10
Abstract
No abstract record available.
Inventors
- 👤 Daniel S Truog
- 👤 Kermit W Dyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:49
CPC Classifications
A; A47; A47J; A47J41/00; A47J41/0038; A47J41/0044; Y; Y10; Y10S; Y10S165/00; Y10S165/902; Y10S165/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A UNIT FOR MAINTAINING FOD IN A HEATED CONDITION COMPRISING: A RECEPTACLE HAVING A PAIR OF VERTICALLY SPACED WALLS AND MEANS TO PRESENT A CLOSED CHAMBER BETWEEN THE WALLS; A LOW MELTING POINT SUBSTANCE HAVING A RELATIVELY HIGH SPECIFIC HEAT WITHIN SAID CHAMBER; AND OPEN FRAMEWORK STRUCTURE WITHIN SAID CHAMBER IN THERMAL INTERCHANGE RELATIONSHIP WITH THE WALLS AND SAID SUBSTANCE, SAID STRUCTURE BEING COMPISED OF A PLURALITY OF INTERCONNECTED, HEAT-CONDUCTING STRIPS DISPOSED TO PRESENT A PLURALITY OF INDIVIDUAL, SUBSTANTIALLY UPRIGHT CAVITIES SURROUNDED BY THE CORRESPONDING STRIPS, CERTAIN OF THE STRIPS SPANNING THE DISTANCE BETWEEN AND BEING IN ENGAGEMENT WITH SAID WALLS TO SUPPORT THE LATTER AGAINST COLLAPSING, SAID SUBSTANCE SUBSTANTIALLY FILLING THE CAVITIES FORMED BY SAID STRIPS.
Claim 2
Dependent Claim
117 words
A UNIT FOR MAINTAINING FOD IN A HEATED CONDITION COMPRISING: A RECEPTACLE HAVING A PAIR OF VERTICALLY SPACED WALLS AND MEANS TO PRESENT A CLOSED CHAMBER BETWEEN THE WALLS; A LOW MELTING POINT SUBSTANCE HAVING A RELATIVELY HIGH SPECIFIC HEAT WITHIN SAID CHAMBER; AND OPEN FRAMEWORK STRUCTURE WITHIN SAID CHAMBER IN THERMAL INTERCHANGE RELATIONSHIP WITH THE WALLS AND SAID SUBSTANCE, SAID STRUCTURE BEING COMPISED OF A PLURALITY OF INTERCONNECTED, HEAT-CONDUCTING STRIPS DISPOSED TO PRESENT A PLURALITY OF INDIVIDUAL, SUBSTANTIALLY UPRIGHT CAVITIES SURROUNDED BY THE CORRESPONDING STRIPS, CERTAIN OF THE STRIPS SPANNING THE DISTANCE BETWEEN AND BEING IN ENGAGEMENT WITH SAID WALLS TO SUPPORT THE LATTER AGAINST COLLAPSING, SAID SUBSTANCE SUBSTANTIALLY FILLING THE CAVITIES FORMED BY SAID STRIPS.
References Cited (Backward Citations)
GB189628042A
Cited
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Cited
US2556498A
Cited
US2640478A
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Cited
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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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |