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Patent US2915346A successfully refreshed from Google Patents.
US2915346A
Expired / Lapsed
US
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Roller bearing assembly for track layer rollers
Assignee: Individual
•
Filing: 1956-05-09
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Granted: 1959-12-01
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Expires: 1976-05-09
Abstract
No abstract record available.
Inventors
- 👤 Ralph F Stallman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:08
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/49; B; B62; B62D; B62D55/00; B62D55/08; B62D55/14; B62D55/15; F16C19/22; F16C19/24; F16C19/28; F16C19/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1943998A
Cited
US1982729A
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US2747949A
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US2809077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |