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US2541818A
Expired / Lapsed
US
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Radio receiver
Assignee: General Electric Co
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Filing: 1948-12-18
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Granted: 1951-02-13
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Expires: 1968-12-18
Abstract
No abstract record available.
Inventors
- 👤 Wolf J Gruen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:46
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/005; H04B1/0067; H04B1/0082; H04B1/0089; H04B1/0092; H03; H03D; H03D11/00; H03D11/06; H03D5/00; H04B1/0096; H04B1/06; H04B1/16; H04B1/26
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) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |