Patent US6629533B1 successfully refreshed from Google Patents.
US2965074A
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US
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Hydraulic stop device
Assignee: D A HUNTER
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Filing: 1958-10-29
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Granted: 1960-12-20
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Expires: 1978-10-29
Abstract
No abstract record available.
Inventors
- 👤 Robert W Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:07
CPC Classifications
B; B23; B23D; B23D33/00; B23D33/10; B23Q; B23Q16/00; B23Q16/008
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) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |