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US2567641A
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Hydraulic work hold-down or clamp
Assignee: Cincinnati Shaper Co
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Filing: 1949-07-28
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Granted: 1951-09-11
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Expires: 1969-07-28
Abstract
No abstract record available.
Inventors
- 👤 Merrill W Hazelton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:03
CPC Classifications
B; B23; B23D; B23D33/00; B23D33/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1728591A
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US2003769A
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GB411193A
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US2145384A
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US2374011A
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US2355721A
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US2394364A
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US2442057A
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US2514016A
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US2464710A
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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) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |