Patent US3138022A successfully refreshed from Google Patents.
US3138022A
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US
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Induction controlled flowmeters for conductive liquids
Assignee: Individual
•
Filing: 1962-02-12
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Granted: 1964-06-23
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Expires: 1982-02-12
Abstract
No abstract record available.
Inventors
- 👤 Mayer Ferdy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:43
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/56; G01F1/58; G01F1/582
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |