Patent US2887878A successfully refreshed from Google Patents.
US2887878A
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US
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Amplifier for an induction flow meter
Assignee: Schneider Electric Systems USA Inc
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Filing: 1953-04-27
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Granted: 1959-05-26
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Expires: 1973-04-27
Abstract
No abstract record available.
Inventors
- 👤 Kamp Johannes Jacobus
- 👤 Smals Jacobus Laurens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:12
CPC Classifications
H; H03; H03G; H03G3/00; H03G3/20; H03G3/22; G; G01; G01F; G01F1/00; G01F1/56; G01F1/58; G01F1/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1725161A
Cited
US1862595A
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US2068116A
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US2290084A
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US2269408A
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US2549782A
Cited
US2757538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |