US2571476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid mixing system
Assignee: Individual
•
Filing: 1947-11-19
•
Granted: 1951-10-16
•
Expires: 1967-11-19
Abstract
No abstract record available.
Inventors
- 👤 William V Offutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:37
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/006; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2564; Y10T137/2572; Y10T137/2931; Y10T137/3115; Y10T137/3118; Y10T137/8593; Y10T137/8597
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US382610A
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US530193A
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US637250A
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US1954154A
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US1875022A
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US2088082A
Cited
US2142947A
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US2323341A
Cited
US2310051A
Cited
US2474512A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-15 | 1955-04-16 | 1955-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-15 | 1959-04-16 | 1959-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-15 | 1963-04-16 | 1963-10-16 | $7700.00 | Window Closed / Lapsed |