US2494673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid metering or control system
Assignee: Individual
•
Filing: 1945-10-09
•
Granted: 1950-01-17
•
Expires: 1965-10-09
Abstract
No abstract record available.
Inventors
- 👤 George A Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:09
CPC Classifications
G; G01; G01F; G01F5/00; G01F5/005; G06; G06G; G06G5/00; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/8593; Y10T137/87265; Y10T137/87338; Y10T137/87354
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1307337A
Cited
US790888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |