Patent US2504960A successfully refreshed from Google Patents.
US2504960A
Expired / Lapsed
US
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Bearing structure for sextants or the like
Assignee: Individual
•
Filing: 1946-12-10
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Granted: 1950-04-25
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Expires: 1966-12-10
Abstract
No abstract record available.
Inventors
- 👤 Thomas O Brandon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:46
CPC Classifications
G; G01; G01C; G01C1/00; G01C1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE358451C
Cited
US1383950A
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US1514394A
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US1476345A
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US1674317A
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US1743979A
Cited
US1931231A
Cited
US2127854A
Cited
GB556034A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-24 | 1953-10-24 | 1954-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-24 | 1957-10-24 | 1958-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-24 | 1961-10-24 | 1962-04-25 | $7700.00 | Window Closed / Lapsed |