Patent US4890278A successfully refreshed from Google Patents.
Patent US2816591A successfully refreshed from Google Patents.
US2816591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light weight metal lock nut having a relatively hard, thin and resilient locking sleeve portion
Assignee: Individual
•
Filing: 1957-03-01
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Granted: 1957-12-17
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Expires: 1977-03-01
Abstract
No abstract record available.
Inventors
- 👤 Reiner Kenneth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:53
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/28; F16B39/284; F16B37/00; F16B37/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1320503A
Cited
US1873895A
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US2150852A
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US2287691A
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US2265661A
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US2385991A
Cited
US2441580A
Cited
US2581312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |