Patent US2950943A successfully refreshed from Google Patents.
US2950943A
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Lubrication device for antifriction bearings
Assignee: Allis Chalmers Corp
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Filing: 1957-06-21
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Granted: 1960-08-30
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Expires: 1977-06-21
Abstract
No abstract record available.
Inventors
- 👤 Frank R Forrest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:07
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/66; F16C33/6637; F16C33/6659; F16C33/6666; F16C33/6662; F16N; F16N7/00; F16N7/14; F16N7/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US427575A
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US1467686A
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US1769736A
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US2242262A
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US2379944A
Cited
GB760817A
Cited
FR1143962A
Cited
GB814446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |