Patent US2931412A successfully refreshed from Google Patents.
US2931412A
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US
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Corrugated spring steel bushing
Assignee: Individual
•
Filing: 1954-10-14
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Granted: 1960-04-05
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Expires: 1974-10-14
Abstract
No abstract record available.
Inventors
- 👤 Luman B Wing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:52
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/0018; F16H57/0025; F01; F01L; F01L1/00; F01L1/02; F01L1/04; F01L1/047; F16B; F16B19/00; F16B19/002; F16B19/004; F16B21/00; F16B21/10; F16B21/20; F16B9/00; F16B9/05; F16B9/056; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/0829; F16D1/0835; Y; Y10; Y10S; Y10S411/00; Y10S411/918; Y10S411/955; Y10S411/965; Y10S411/974; Y10S411/999; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49872; Y10T29/49881; Y10T29/49945; Y10T403/00; Y10T403/46; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20299
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE265879C
Cited
US862898A
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US1469880A
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GB414631A
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US2239641A
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US2481325A
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US2399107A
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GB636346A
Cited
FR1031916A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |