US2460288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resonator apparatus
Assignee: Leland Stanford Junior University
•
Filing: 1943-12-06
•
Granted: 1949-02-01
•
Expires: 1963-12-06
Abstract
No abstract record available.
Inventors
- 👤 William W Hansen
- 👤 Russell H Varian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:30
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/36; H01J25/00; H01J25/02; H01J25/10; H01J25/12; H01P; H01P1/00; H01P1/20; H01P1/213; H01P1/2138
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2206683A
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US2200023A
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US2153728A
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US2218902A
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US2281550A
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US2242275A
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US2272165A
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US2280824A
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US2245627A
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US2406370A
Cited
US2259690A
Cited
US2278210A
Cited
US2311520A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-01 | 1952-08-02 | 1953-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-01 | 1956-08-02 | 1957-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-01 | 1960-08-02 | 1961-02-01 | $7700.00 | Window Closed / Lapsed |