Patent US2983931A successfully refreshed from Google Patents.
US2983931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bed slat safety lock bracket
Assignee: Individual
•
Filing: 1958-05-27
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Granted: 1961-05-16
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Expires: 1978-05-27
Abstract
No abstract record available.
Inventors
- 👤 Permil N Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:11
CPC Classifications
F; F16; F16B; F16B12/00; F16B12/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US572600A
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US589942A
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US107774A
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US682386A
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US746211A
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US797011A
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US1423804A
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US2553807A
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US2492070A
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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) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |