US2832051A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Push-pull transistor modulator
Assignee: AT&T Inc
•
Filing: 1953-06-01
•
Granted: 1958-04-22
•
Expires: 1973-06-01
Abstract
No abstract record available.
Inventors
- 👤 Raisbeck Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:34
CPC Classifications
H; H03; H03C; H03C1/00; H03C1/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1636146A
Cited
US2267703A
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US2387652A
Cited
US2447701A
Cited
US2533001A
Cited
US2647957A
Cited
US2691075A
Cited
US2680160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |