Patent FR408991A successfully refreshed from Google Patents.
US3395579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus to ensure accurate working of meters at low flow rates
Assignee: Elster Metering Holdings Ltd
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Filing: 1965-12-02
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Granted: 1968-08-06
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Expires: 1985-12-02
Abstract
No abstract record available.
Inventors
- 👤 Terence A Stoten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:26
CPC Classifications
G; G01; G01F; G01F15/00; G01F15/02; G01F15/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE228226C
Cited
US1808209A
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US2049642A
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US2095485A
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US2116592A
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US3145565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |