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US2760002A
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Time-multiplex pulse modulation communication system
Assignee: Hartford National Bank and Trust Co
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Filing: 1950-10-14
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Granted: 1956-08-21
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Expires: 1970-10-14
Abstract
No abstract record available.
Inventors
- 👤 Adelbert Van Weel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:20
CPC Classifications
H; H04; H04J; H04J3/00; H04J3/16; H04J3/1676
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB610774A
Cited
US2497411A
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US2570010A
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US2631194A
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US2559606A
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US2559644A
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US2549422A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |