US2803702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal difference coded pulse communication system
Assignee: Alsacienne de Constructions Mecaniques SA
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Filing: 1953-10-09
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Granted: 1957-08-20
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Expires: 1973-10-09
Abstract
No abstract record available.
Inventors
- 👤 Jean Andre Ville
- 👤 Robert Gaston Blonde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:46
CPC Classifications
H; H03; H03M; H03M3/00; H03M3/02
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) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |