US2554595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft-operated fluid-flow mechanism and the like and shaft-sealing means therefor
Assignee: Smith Precision Products Co
•
Filing: 1948-11-29
•
Granted: 1951-05-29
•
Expires: 1968-11-29
Abstract
No abstract record available.
Inventors
- 👤 Lawrence W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:59
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2455700A
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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) | 1954-05-28 | 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 |