US3104305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave frequency heating apparatus
Assignee: Litton Electron Tube Corp
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Filing: 1962-10-11
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Granted: 1963-09-17
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Expires: 1982-10-11
Abstract
No abstract record available.
Inventors
- 👤 Crapuchettes Paul Wythe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:48
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/66; H05B6/666; H01; H01J; H01J23/00; H01J23/36; H01J23/40; H01J23/48; H05B2206/00; H05B2206/04; H05B2206/044
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
71 words
A MICROWAVE UNIT FOR EXCITING A MICROWAVE RESONANT CAVITY COMPRISING: FIRST MEANS ADAPTED AND ARRANGED TO INTRODUCE A FIRST MICROWAVE ENERGY INTO THE CAVITY AT A PRESELECTED POINT TO FORM A FIRST MICROWAVE RESONANT MODE HAVING A FIELD PATTERN WITH NULLS AT PREDETERMINED POINTS IN THE CAVITY; AND SECOND MEANS SEPARATE AND DISTINCT FROM SAID FIRST MEANS AND ADAPTED AND ARRANGED TO INTRODUCE A SECOND MICROWAVE ENERGY INTO THE CAVITY ADJACENT
References Cited (Backward Citations)
US2337184A
Cited
US2504894A
Cited
US2593067A
Cited
US2763757A
Cited
US2778911A
Cited
US2895828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |