US3490049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demodulation of digital information signals of the type using angle modulation of a carrier wave
Assignee: Compagnie Francaise Thomson Houston SA
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Filing: 1967-06-13
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Granted: 1970-01-13
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Expires: 1987-06-13
Abstract
No abstract record available.
Inventors
- 👤 Michel Choquet
- 👤 Michel Coeuret
- 👤 Francois Leraillez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:40
CPC Classifications
H; H04; H04L; H04L27/00; H04L27/10; H04L27/14; H04L27/156; H04L27/1566; H04L27/18; H04L27/22; H04L27/233; H04L27/2338
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |