US3353968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Food package for use in microwave heating apparatus
Assignee: Northrop Grumman Guidance and Electronics Co Inc
•
Filing: 1966-05-16
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Granted: 1967-11-21
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Expires: 1986-05-16
Abstract
No abstract record available.
Inventors
- 👤 Edward Z Krajewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:52
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/647; H05B6/6491; H05B6/6494; Y; Y10; Y10S; Y10S99/00; Y10S99/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A FROZEN FOOD PACKAGE ADAPTABLE FORREHEATING IN A MICROWAVE OVEN COMPRISING CENTRALLY LOCATED FROZEN FOOD, A DIELECTRIC WRAPPER, AND MEANS FOR CONCENTRATING MICROWAVE ENERGY IN SELECTED PORTIONS OF SAID FROZEN FOOD, SAID MEANS COMPRISING AT LEAST TWO NON-CONTACTING SPACED THIN ELONGATED STRIPS OF CONDUCTIVE MATERIAL ATTACHED TO SAID WRAPPER.
Claim 2
Dependent Claim
49 words
A FROZEN FOOD PACKAGE ADAPTABLE FORREHEATING IN A MICROWAVE OVEN COMPRISING CENTRALLY LOCATED FROZEN FOOD, A DIELECTRIC WRAPPER, AND MEANS FOR CONCENTRATING MICROWAVE ENERGY IN SELECTED PORTIONS OF SAID FROZEN FOOD, SAID MEANS COMPRISING AT LEAST TWO NON-CONTACTING SPACED THIN ELONGATED STRIPS OF CONDUCTIVE MATERIAL ATTACHED TO SAID WRAPPER.
References Cited (Backward Citations)
US2714070A
Cited
US3219460A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |