Patent US3469893A successfully refreshed from Google Patents.
US3469893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing construction
Assignee: Individual
•
Filing: 1967-03-13
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Granted: 1969-09-30
•
Expires: 1987-03-13
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Hudson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:16
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/46; F16C33/4617; F16C33/4623; F16C29/00; F16C29/04; F16C33/306; F16C33/48; F16C33/485; Y; Y10; Y10T; Y10T408/00; Y10T408/96; Y10T409/00; Y10T409/30; Y10T409/30868
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2304291A
Cited
US2371330A
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US2420296A
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FR1031490A
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US2889180A
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US2805521A
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US2846278A
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US2987348A
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US3353876A
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US3361032A
Cited
US3357755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |