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US2906568A
Expired / Lapsed
US
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Spherical bearing
Assignee: Lockheed Martin Corp
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Filing: 1956-03-13
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Granted: 1959-09-29
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Expires: 1976-03-13
Abstract
No abstract record available.
Inventors
- 👤 Warren E Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:53
CPC Classifications
F; F16; F16C; F16C23/00; F16C23/02; F16C23/04; F16C23/043; F16C23/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US409204A
Cited
US1677514A
Cited
US1020423A
Cited
US1762394A
Cited
US2046025A
Cited
US2260283A
Cited
US2711352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |