Patent US2679438A successfully refreshed from Google Patents.
US2679438A
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US
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Bearing having a cross sectional spiral contour
Assignee: Johnson Bronze Co
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Filing: 1951-01-20
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Granted: 1954-05-25
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Expires: 1971-01-20
Abstract
No abstract record available.
Inventors
- 👤 Phil P Love
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:51
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16C33/1025; F16C33/106; F16C33/1075; F16C17/00; F16C17/02; F16C17/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1236511A
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US1254909A
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US1495660A
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DE556052C
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US2093521A
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US2133476A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |