Patent EP0194856A2 successfully refreshed from Google Patents.
US2736889A
Expired / Lapsed
US
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High-speed electronic digital-to-analogue converter system
Assignee: Raytheon Co
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Filing: 1953-04-02
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Granted: 1956-02-28
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Expires: 1973-04-02
Abstract
No abstract record available.
Inventors
- 👤 Harold R Kaiser
- 👤 Claude A Lane
- 👤 Wilford S Shockency
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:58
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/06; H03M1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2538615A
Cited
US2537427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |