US3004429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamic flowmeter
Assignee: General Electric Co
•
Filing: 1956-02-29
•
Granted: 1961-10-17
•
Expires: 1976-02-29
Abstract
No abstract record available.
Inventors
- 👤 John R Granan
- 👤 Ernest E Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:27
CPC Classifications
G; G01; G01F; G01F15/00; G01F15/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1325434A
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US1451064A
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US2080183A
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US2118079A
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US2588342A
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US2357199A
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US2646755A
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US2453538A
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US2621516A
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US2842961A
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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) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |