US2629578A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball valve
Assignee: PAUL VALVE Corp
•
Filing: 1947-02-24
•
Granted: 1953-02-24
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Expires: 1967-02-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Herman L Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:11
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/30; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7723; Y10T137/7726; Y10T137/7727; Y10T137/7837; Y10T137/7869; Y10T137/7871; Y10T137/7873
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US440025A
Cited
US971295A
Cited
GB191101624A
Cited
US1097416A
Cited
US1855106A
Cited
US1786848A
Cited
FR788425A
Cited
GB527345A
Cited
US2395212A
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 |