US2631907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Ohio Brass Co
•
Filing: 1947-11-28
•
Granted: 1953-03-17
•
Expires: 1967-11-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Carl G A Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:18
CPC Classifications
F; F16; F16J; F16J9/00; F16J9/06; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/363
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US421646A
Cited
US788769A
Cited
US1239726A
Cited
US1385508A
Cited
US1512746A
Cited
GB522024A
Cited
US2337841A
Cited
US2509672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |