Patent US6485510B1 successfully refreshed from Google Patents.
US2981795A
Expired / Lapsed
US
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Device for driving a receiving teletypewriter, with correction of the drivepulse distortion
Assignee: METALLOTECNICA SOC
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Filing: 1956-05-09
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Granted: 1961-04-25
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Expires: 1976-05-09
Abstract
No abstract record available.
Inventors
- 👤 Cupella Aldo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:01
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/24; H04L1/248
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1969573A
Cited
US1971148A
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US2173740A
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US2468556A
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US2599345A
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US2712038A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |