US3457512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Angle-modulated signal receiving system with improved noise immunity
Assignee: Compagnie Francaise Thomson Houston SA
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Filing: 1965-10-07
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Granted: 1969-07-22
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Expires: 1985-10-07
Abstract
No abstract record available.
Inventors
- 👤 Pierre Deman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:51
CPC Classifications
H; H03; H03D; H03D3/00; H03D3/02; H03D3/24; H03D3/241; H04; H04B; H04B14/00; H04B14/002; H04B14/006; H04B7/00; H04B7/02; H04B7/04; H04B7/08; H04B7/0837; H04B7/0842; H04B7/0865; H04B7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3029338A
Cited
US3195049A
Cited
US3188571A
Cited
US3328698A
Cited
US3348152A
Cited
US3366884A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |