Patent US2857656A successfully refreshed from Google Patents.
US2857656A
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Method of making high load capacity bearings
Assignee: Aetna Steel Products Corp
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Filing: 1954-04-26
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Granted: 1958-10-28
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Expires: 1974-04-26
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Straub
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:51
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/05; B21K25/00; F; F16; F16C; F16C23/00; F16C23/02; F16C23/04; F16C23/043; F16C23/045; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49648; Y10T29/49655; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49917; Y10T29/49918; Y10T29/49925; Y10T29/49934
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |