Patent US2606285A successfully refreshed from Google Patents.
US2606285A
Expired / Lapsed
US
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Double heterodyne radio receiver
Assignee: FR DES TELECOMM SOC
•
Filing: 1946-10-18
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Granted: 1952-08-05
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Expires: 1966-10-18
Abstract
No abstract record available.
Inventors
- 👤 Bataille Roger
- 👤 Honorat Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:41
CPC Classifications
H; H03; H03D; H03D7/00; H03D7/06; H03D7/10; H03B; H03B21/00; H03B21/01; H03B21/02; H03B21/04; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/26
Claims Analysis
Total Claims: 0
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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) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |