US2458978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid control system and mechanism
Assignee: Dole Valve Co
•
Filing: 1944-04-24
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Granted: 1949-01-11
•
Expires: 1964-04-24
Abstract
No abstract record available.
Inventors
- 👤 Thomas B Chace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:12
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/001; G05D7/00; G05D7/06; G05D7/0617; G05D7/0629; G05D7/0635
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1545938A
Cited
US1985929A
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US2137928A
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US2197294A
Cited
US2269259A
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US2334831A
Cited
US2296266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-11 | 1952-07-12 | 1953-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-11 | 1956-07-12 | 1957-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-11 | 1960-07-12 | 1961-01-11 | $7700.00 | Window Closed / Lapsed |