US2878452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modulator circuit
Assignee: Motorola Solutions Inc
•
Filing: 1953-09-03
•
Granted: 1959-03-17
•
Expires: 1973-09-03
Abstract
No abstract record available.
Inventors
- 👤 Louis H Rohr
- 👤 William L Firestone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:31
CPC Classifications
H; H03; H03C; H03C3/00; H03C3/10; H03C3/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1769360A
Cited
US1636921A
Cited
US1796116A
Cited
US1841459A
Cited
US1994228A
Cited
US2473610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |