Patent US2629474A successfully refreshed from Google Patents.
US2629474A
Expired / Lapsed
US
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Fluid pressure and screw operated coupling
Assignee: Individual
•
Filing: 1950-04-14
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Granted: 1953-02-24
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Expires: 1970-04-14
Abstract
No abstract record available.
Inventors
- 👤 John N Weiland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:48
CPC Classifications
F; F16; F16D; F16D25/00; F16D25/06; F16D25/062; F16D25/063; F16D25/0635
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT7345B
Cited
US1740993A
Cited
US1614976A
Cited
GB299121A
Cited
US2045593A
Cited
DE686626C
Cited
US2426791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-24 | 1956-08-25 | 1957-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-24 | 1960-08-25 | 1961-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-24 | 1964-08-25 | 1965-02-24 | $7700.00 | Window Closed / Lapsed |