US2441464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modulated-oscillator, phonograph transducer
Assignee: Lanteris Space LLC
•
Filing: 1941-06-13
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Granted: 1948-05-11
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Expires: 1961-06-13
Abstract
No abstract record available.
Inventors
- 👤 Robert B Albright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:27
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/20; H04R; H04R11/00; H04R11/08; H04R23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1566634A
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US1580510A
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US1548895A
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US2047817A
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US2112010A
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GB373973A
Cited
US1915804A
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US1982689A
Cited
US1905669A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-11 | 1951-11-10 | 1952-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-11 | 1955-11-10 | 1956-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-11 | 1959-11-10 | 1960-05-11 | $7700.00 | Window Closed / Lapsed |