US3397296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating of substances by electrical energy at microwave frequencies
Assignee: Associated Electrical Industries Ltd
•
Filing: 1965-05-28
•
Granted: 1968-08-13
•
Expires: 1985-05-28
Abstract
No abstract record available.
Inventors
- 👤 Curran John Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:08
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/78; H05B6/782
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2540036A
Cited
US3102181A
Cited
US3110794A
Cited
US3210511A
Cited
US3219460A
Cited
US3271552A
Cited
US3271169A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |