US2445990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal translating apparatus
Assignee: RCA Corp
•
Filing: 1944-04-29
•
Granted: 1948-07-27
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Expires: 1964-04-29
Abstract
No abstract record available.
Inventors
- 👤 Badmaieff Alexis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:29
CPC Classifications
H; H04; H04R; H04R19/00; H04R19/04; H03; H03C; H03C3/00; H03C3/10; H03C3/28; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/20; H04R23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB310762A
Cited
US1786436A
Cited
US1796155A
Cited
US2033479A
Cited
US2032194A
Cited
US2147092A
Cited
US2239717A
Cited
US2386049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-27 | 1952-01-26 | 1952-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-27 | 1956-01-26 | 1956-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-27 | 1960-01-26 | 1960-07-27 | $7700.00 | Window Closed / Lapsed |