US3179780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for heating deep-frozen eatables with the aid of microwaves
Assignee: US Philips Corp
•
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 03:41
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
Cited
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 |