US2596532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic jack operated valve and attachment
Assignee: Individual
•
Filing: 1946-10-11
•
Granted: 1952-05-13
•
Expires: 1966-10-11
Abstract
No abstract record available.
Inventors
- 👤 William N Coolidge
- 👤 Frank W Geiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:58
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/14; F16K31/143; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6966; Y10T137/6991; Y10T137/6995; Y10T137/701
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US295676A
Cited
US766753A
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US954437A
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AT58131B
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US1562223A
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US1610420A
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US1929867A
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US2237377A
Cited
US2368457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |