US2444066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tuner for cavity resonators
Assignee: International Standard Electric Corp
•
Filing: 1943-06-03
•
Granted: 1948-06-29
•
Expires: 1963-06-03
Abstract
No abstract record available.
Inventors
- 👤 Rostas Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:00
CPC Classifications
H; H01; H01P; H01P7/00; H01P7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1913978A
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US2280824A
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US2259690A
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US2342897A
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US2323729A
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US2281717A
Cited
US2356414A
Cited
US2306282A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-29 | 1951-12-29 | 1952-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-29 | 1955-12-29 | 1956-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-29 | 1959-12-29 | 1960-06-29 | $7700.00 | Window Closed / Lapsed |