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US2879501A
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US
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Null-responsive ratio-modulation multiplex data transmission systems
Assignee: Individual
•
Filing: 1953-04-30
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Granted: 1959-03-24
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Expires: 1973-04-30
Abstract
No abstract record available.
Inventors
- 👤 Baran Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:39
CPC Classifications
G; G05; G05D; G05D3/00; G05D3/12; G05D3/121; G05D3/124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1600204A
Cited
US1906269A
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GB400289A
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US2173496A
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US2256482A
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US2409560A
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US2538065A
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FR975183A
Cited
US2555166A
Cited
US2556556A
Cited
US2596147A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |