Patent US2621091A successfully refreshed from Google Patents.
US2621091A
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Antifriction bearing
Assignee: Ransome and Marles Bearing Co Ltd
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Filing: 1948-11-18
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Granted: 1952-12-09
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Expires: 1968-11-18
Abstract
No abstract record available.
Inventors
- 👤 Hickling Frederick Osgood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:14
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/78; F16C33/7869; F16C33/7873; F16C33/7876
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE561242C
Cited
US2098205A
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US2034567A
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US2145928A
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US2185339A
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US2172325A
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US2264062A
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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) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |