US2469264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generation and modulation of alternating current signals
Assignee: RCA Corp
•
Filing: 1944-11-29
•
Granted: 1949-05-03
•
Expires: 1964-11-29
Abstract
No abstract record available.
Inventors
- 👤 Edwin A Goldberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:28
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/30; H03C; H03C1/00; H03C1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1869331A
Cited
US2138138A
Cited
US2103619A
Cited
US2283241A
Cited
US2294171A
Cited
US2292790A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-02 | 1952-11-01 | 1953-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-02 | 1956-11-01 | 1957-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-02 | 1960-11-01 | 1961-05-03 | $7700.00 | Window Closed / Lapsed |