US2475074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency stabilizing system
Assignee: Lanteris Space LLC
•
Filing: 1944-08-31
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Granted: 1949-07-05
•
Expires: 1964-08-31
Abstract
No abstract record available.
Inventors
- 👤 William E Bradley
- 👤 Howard E Tompkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:29
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/02; H03L7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2198226A
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US2280824A
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US2245627A
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US2375223A
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US2374810A
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USRE22587E
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US2337214A
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US2358545A
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US2404568A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-04 | 1953-01-03 | 1953-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-04 | 1957-01-03 | 1957-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-04 | 1961-01-03 | 1961-07-05 | $7700.00 | Window Closed / Lapsed |