Patent DE1121972B successfully refreshed from Google Patents.
US2476409A
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US
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Automatic regeneration control for pulse-echo systems
Assignee: Lanteris Space LLC
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Filing: 1946-03-06
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Granted: 1949-07-19
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Expires: 1966-03-06
Abstract
No abstract record available.
Inventors
- 👤 Albert L Free
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:20
CPC Classifications
H; H03; H03D; H03D11/00; H03D11/02; G; G01; G01S; G01S13/00; G01S13/66; G01S13/70; G01S7/00; G01S7/02; G01S7/28; G01S7/282; G01S7/285; G01S7/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2147595A
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US2404527A
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US2333119A
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US2419541A
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US2421018A
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US2422382A
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US2414992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-18 | 1953-01-17 | 1953-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-18 | 1957-01-17 | 1957-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-18 | 1961-01-17 | 1961-07-19 | $7700.00 | Window Closed / Lapsed |