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US2576298A
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Shaft keying and locking construction
Assignee: TRI CLOVER MACHINE CO
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Filing: 1949-03-31
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Granted: 1951-11-27
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Expires: 1969-03-31
Abstract
No abstract record available.
Inventors
- 👤 Joseph S Kessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:39
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/10; F16B21/16; F16B21/18; F16B21/186; F16B2/00; F16B2/20; F16B2/22; F16B2/24; F16B2/248; F16B21/12; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/926; Y10S411/928; Y10S411/929; Y10S411/939; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49876
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1017371A
Cited
GB191401204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |