Patent US3473150A successfully refreshed from Google Patents.
US3473150A
Expired / Lapsed
US
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Block synchronization circuit for a data communications system
Assignee: AT&T Teletype Corp
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Filing: 1966-08-10
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Granted: 1969-10-14
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Expires: 1986-08-10
Abstract
No abstract record available.
Inventors
- 👤 Walter B Mcclelland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:21
CPC Classifications
H; H04; H04L; H04L1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3001017A
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US2846007A
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US2985714A
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US3001018A
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US3154638A
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US3381272A
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US3388378A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |