US3502375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing assembly
Assignee: Farrel Corp
•
Filing: 1967-09-06
•
Granted: 1970-03-24
•
Expires: 1987-09-06
Abstract
No abstract record available.
Inventors
- 👤 Warren C Whittum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:45
CPC Classifications
B; B21; B21B; B21B31/00; B21B31/07; D; D21; D21G; D21G1/00; D21G1/02; D21G1/0226; F; F16; F16C; F16C13/00; F16C13/02; F16C19/00; F16C19/22; F16C19/34; F16C19/38; F16C19/383; F16C19/388; F16C23/00; F16C23/06; F16C23/08; F16C23/082; F16C23/086; F16C2322/00; F16C2322/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1726601A
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US1765705A
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US1774655A
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US1776647A
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US2018055A
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US2050166A
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US2243009A
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US2161768A
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US2429516A
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US2507204A
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US2955001A
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US3336998A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |