Patent US1572048A successfully refreshed from Google Patents.
US2688231A
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US
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Piston actuated hydraulic pressure tool
Assignee: Manco Manufacturing Co
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Filing: 1951-06-20
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Granted: 1954-09-07
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Expires: 1971-06-20
Abstract
No abstract record available.
Inventors
- 👤 Walter E Northcutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:44
CPC Classifications
H; H01; H01R; H01R43/00; H01R43/04; H01R43/042; H01R43/0427
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2134773A
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US2165504A
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US2250551A
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US2311468A
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US2417956A
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US2555421A
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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) | 1957-09-06 | 1958-03-08 | 1958-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-06 | 1962-03-08 | 1962-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-06 | 1966-03-08 | 1966-09-07 | $7700.00 | Window Closed / Lapsed |