US2581594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wide-range high stability frequency generating system
Assignee: RCA Corp
•
Filing: 1948-12-30
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Granted: 1952-01-08
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Expires: 1968-12-30
Abstract
No abstract record available.
Inventors
- 👤 Olin L Macsorley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:22
CPC Classifications
H; H03; H03J; H03J7/00; H03J7/02; H03J7/04; H03J7/06; H04; H04B; H04B1/00; H04B1/02; H04B1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2152336A
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US2240428A
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US2175320A
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US2248442A
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US2405765A
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US2406125A
Cited
US2452601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |