Patent US2980474A successfully refreshed from Google Patents.
US2980474A
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Shafts for carrying interference-fitted members thereon
Assignee: British Timken Ltd
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Filing: 1958-03-17
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Granted: 1961-04-18
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Expires: 1978-03-17
Abstract
No abstract record available.
Inventors
- 👤 Gargan Lilian Lucina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:42
CPC Classifications
F; F16; F16C; F16C35/00; F16C35/04; F16C35/06; B; B21; B21B; B21B31/00; B21B31/07; B23; B23P; B23P11/00; B23P11/02; B23P11/022; F16C2322/00; F16C2322/12; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86501; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49696; Y10T29/49805; Y10T29/49815; Y10T29/49822; Y10T29/49826; Y10T29/49863
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) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |