US2780672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for separating synchronizing pulses and signal pulses with pulsecode modulaton
Assignee: Hartford National Bank and Trust Co
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Filing: 1952-10-01
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Granted: 1957-02-05
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Expires: 1972-10-01
Abstract
No abstract record available.
Inventors
- 👤 Greefkes Johannes Anton
- 👤 Piet Van Tilburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:14
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/04; H04N5/08; H04N5/10; H01; H01F; H01F7/00; H01F7/02; H01F7/0231; H01F7/0242; H04J; H04J3/00; H04J3/02; H04J3/06; H04J3/0602; H04J3/0617
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |