Patent US3179780A successfully refreshed from Google Patents.
US3179780A
Expired / Lapsed
US
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Device for heating deep-frozen eatables with the aid of microwaves
Assignee: US Philips Corp
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Filing: 1961-11-03
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Granted: 1965-04-20
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Expires: 1981-11-03
Abstract
No abstract record available.
Inventors
- 👤 Verstraten Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:57
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/647; H05B6/6491; H05B6/6494; A; A23; A23L; A23L5/00; A23L5/10; A23L5/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
APPARATUS FOR HEATING A SUBSTANCE BY MEANS OF HIGH FREQUENCY RADIO ENERGY, COMPRISING A RECEPTACLE MADE OF LOW-LOSS DIELECTRIC MATERIAL CONTAINING THEREIN THE SUBSTANCE TO BE HEATED, A THICK-WALLED LOW-LOSS DIELECTRIC CONTAINER SHAPED TO RECEIVE SAID RECEPTACLE IN CLOSE CONTACT, SAID RECEPTACLE BEING FREELY REMOVABLE FROM SAID CONTAINER, AND SAID CONTAINER BEING MADE OF A MATERIAL HAVING A DIELECTRIC CONSTANT APPROXIMATELY EQUAL TO THE DIELECTRIC CONSTANT OF THE SUBSTANCE TO BE HEATED.
Claim 2
Dependent Claim
72 words
APPARATUS FOR HEATING A SUBSTANCE BY MEANS OF HIGH FREQUENCY RADIO ENERGY, COMPRISING A RECEPTACLE MADE OF LOW-LOSS DIELECTRIC MATERIAL CONTAINING THEREIN THE SUBSTANCE TO BE HEATED, A THICK-WALLED LOW-LOSS DIELECTRIC CONTAINER SHAPED TO RECEIVE SAID RECEPTACLE IN CLOSE CONTACT, SAID RECEPTACLE BEING FREELY REMOVABLE FROM SAID CONTAINER, AND SAID CONTAINER BEING MADE OF A MATERIAL HAVING A DIELECTRIC CONSTANT APPROXIMATELY EQUAL TO THE DIELECTRIC CONSTANT OF THE SUBSTANCE TO BE HEATED.
References Cited (Backward Citations)
US1526397A
Cited
US2178812A
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US2612596A
Cited
US2540036A
Cited
US2856497A
Cited
US2830162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |