US2834390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient coil pawl and ratchet type nut and bolt lock
Assignee: Individual
•
Filing: 1953-12-07
•
Granted: 1958-05-13
•
Expires: 1973-12-07
Abstract
No abstract record available.
Inventors
- 👤 Stevens Ludlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:48
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/28; F16B39/32; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/949; Y10S411/95; Y10S411/951
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US599554A
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US1195454A
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US1010264A
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US1364553A
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US1421090A
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US1467907A
Cited
US2106669A
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US2306806A
Cited
US2342170A
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US2601651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |