US2658522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow metering device
Assignee: DRESSER EQUIPMENT Co
•
Filing: 1947-05-19
•
Granted: 1953-11-10
•
Expires: 1967-05-19
Abstract
No abstract record available.
Inventors
- 👤 Clarence J Coberly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:45
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0126; G05D7/0133; G05D7/014; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7737; Y10T137/7758; Y10T137/7759; Y10T137/7781; Y10T137/7784; Y10T137/7785; Y10T137/7787; Y10T137/8158; Y10T137/8326; Y10T137/8593; Y10T137/87265; Y10T137/87281; Y10T137/8729
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1685205A
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US1813122A
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US1787686A
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US1745059A
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US2035472A
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US2102865A
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US2227297A
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US2258878A
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US2468416A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |