Patent US2998637A successfully refreshed from Google Patents.
US2998637A
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US
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Bearings
Assignee: Vickers Armstrongs Aircraft Ltd
•
Filing: 1959-08-03
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Granted: 1961-09-05
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Expires: 1979-08-03
Abstract
No abstract record available.
Inventors
- 👤 Barnes N Wailis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:15
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1026; Y10T156/1052; Y10T156/1062; Y10T156/1064; Y10T156/1075; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1320563A
Cited
US2060034A
Cited
US2324083A
Cited
US2835521A
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US2838436A
Cited
US2838829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |