Patent US2984706A successfully refreshed from Google Patents.
US2984706A
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Insertion of framing information in pulse modulation systems
Assignee: AT&T Inc
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Filing: 1957-12-24
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Granted: 1961-05-16
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Expires: 1977-12-24
Abstract
No abstract record available.
Inventors
- 👤 Hal M Jamison
- 👤 Robert L Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:15
CPC Classifications
H; H04; H04J; H04J3/00; H04J3/02; H04J3/06; H04J3/0602; H04J3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2549422A
Cited
US2548661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |