US2593527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Ralph N Brodie Co
•
Filing: 1945-01-04
•
Granted: 1952-04-22
•
Expires: 1965-01-04
Abstract
No abstract record available.
Inventors
- 👤 William F Berck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:05
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/04; F16K5/0414; F16K5/08; F16K5/14; F16K5/18; F16K5/181
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US539631A
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US1048635A
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US1088088A
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US1224090A
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US1361126A
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US1522353A
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US1520367A
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US1710176A
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US1807856A
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US2244759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |