Patent US3021710A successfully refreshed from Google Patents.
US3021710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow meter
Assignee: Office National d'Études et de Recherches Aérospatiales
•
Filing: 1954-03-08
•
Granted: 1962-02-20
•
Expires: 1974-03-08
Abstract
No abstract record available.
Inventors
- 👤 Barrere Marcel
- 👤 Moutet Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:33
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/06; G01F1/065
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US114415A
Cited
US918097A
Cited
GB190915073A
Cited
US1126275A
Cited
US2037278A
Cited
GB466004A
Cited
US2326169A
Cited
GB606278A
Cited
US2623389A
Cited
US2709366A
Cited
US2723562A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |