US3230864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave cooking
Assignee: Northrop Grumman Guidance and Electronics Co Inc
•
Filing: 1961-05-15
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Granted: 1966-01-25
•
Expires: 1981-05-15
Abstract
No abstract record available.
Inventors
- 👤 Krajewski Edward Zigmund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:08
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/647; H05B6/6491; H05B6/6494; B; B65; B65D; B65D81/00; B65D81/34; B65D81/3446; B65D81/3453; Y; Y10; Y10S; Y10S99/00; Y10S99/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A COOKING UTENSIL FOR USE IN A MICROWAVE OVEN, COMPRISING, IN COMBINATION, A CLOSED CONDUCTIVE PAN, AN APERTURE ELECTRICALLY CONDUCTIVE COVER IN INTIMATE CONDUCTIVE ENGAGEMENT WITH SAID PAN, AND AN ELECTRICALLY INSULATING SHEET HAVING APERTURES ALIGNED WITH THE APERTURES IN SAID THE APERTURES IN SAID CONDUCTIVE COVER AND INSULATING SHEET BEING ADAPTED TO SUPPORT AN OBJECT TO BE HEATED IN A MICROWAVE OVEN.
Claim 2
Dependent Claim
63 words
A COOKING UTENSIL FOR USE IN A MICROWAVE OVEN, COMPRISING, IN COMBINATION, A CLOSED CONDUCTIVE PAN, AN APERTURE ELECTRICALLY CONDUCTIVE COVER IN INTIMATE CONDUCTIVE ENGAGEMENT WITH SAID PAN, AND AN ELECTRICALLY INSULATING SHEET HAVING APERTURES ALIGNED WITH THE APERTURES IN SAID THE APERTURES IN SAID CONDUCTIVE COVER AND INSULATING SHEET BEING ADAPTED TO SUPPORT AN OBJECT TO BE HEATED IN A MICROWAVE OVEN.
References Cited (Backward Citations)
US616883A
Cited
US2003494A
Cited
US2593592A
Cited
US2612596A
Cited
US2597825A
Cited
US2582174A
Cited
US2600566A
Cited
US2501400A
Cited
US2714070A
Cited
US2762893A
Cited
US2866551A
Cited
US2864932A
Cited
US2888542A
Cited
US3127828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |