Patent US2565523A successfully refreshed from Google Patents.
US2565523A
Expired / Lapsed
US
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Sea rescue transmitter
Assignee: Individual
•
Filing: 1945-04-17
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Granted: 1951-08-28
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Expires: 1965-04-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Blinn W Russell
- 👤 Rosenberg Harold
- 👤 Brown Sherman James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:49
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/02; H04B1/03; H04B1/034; B; B63; B63C; B63C9/00; B63C9/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2070112A
Cited
US2423836A
Cited
US2291767A
Cited
US2310017A
Cited
US2311491A
Cited
US2439408A
Cited
US2334211A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |