US2879384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase synchronizing systems
Assignee: RCA Corp
•
Filing: 1954-06-29
•
Granted: 1959-03-24
•
Expires: 1974-06-29
Abstract
No abstract record available.
Inventors
- 👤 Noah E Sprecher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:11
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/04; H04N5/06; H04N5/067; H04N5/073
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2405237A
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US2399135A
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US2677758A
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US2681414A
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US2551280A
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US2594276A
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US2806946A
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US2794123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |