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Patent US2721776A successfully refreshed from Google Patents.
US2721776A
Expired / Lapsed
US
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Roller set for roller bearings
Assignee: SKF Industries Inc
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Filing: 1952-04-04
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Granted: 1955-10-25
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Expires: 1972-04-04
Abstract
No abstract record available.
Inventors
- 👤 Ruist John Ture
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:26
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/22; F16C19/34; F16C19/36; F16C19/361; F16C19/362; F16C29/00; F16C29/04; F16C29/043; F16C33/00; F16C33/30; F16C33/46; F16C33/50; F16C33/54; F16C33/542
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-24 | 1959-04-25 | 1959-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-24 | 1963-04-25 | 1963-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-24 | 1967-04-25 | 1967-10-25 | $7700.00 | Window Closed / Lapsed |