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Patent US2632058A successfully refreshed from Google Patents.
US2632058A
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Pulse code communication
Assignee: AT&T Inc
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Filing: 1947-11-13
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Granted: 1953-03-17
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Expires: 1967-11-13
Abstract
No abstract record available.
Inventors
- 👤 Gray Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:44
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/02; H01J31/04; H03; H03M; H03M1/00; H03M1/12; H03M1/22; H03M1/32; H03M13/00; H04; H04B; H04B14/00; H04B14/02; H04B14/04; H04B14/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB344444A
Cited
US2207744A
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US2272070A
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US2438487A
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GB582177A
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US2437707A
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US2453461A
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US2458652A
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US2489883A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |