Patent EP0206391A2 successfully refreshed from Google Patents.
US2554622A
Expired / Lapsed
US
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Fluid conduit connections to centrifugal machines
Assignee: Sharples Corp
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Filing: 1947-01-25
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Granted: 1951-05-29
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Expires: 1967-01-25
Abstract
No abstract record available.
Inventors
- 👤 Leo D Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:14
CPC Classifications
B; B04; B04B; B04B1/00; F; F16; F16L; F16L27/00; F16L27/08
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) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |