US3438254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid flow detector
Assignee: United Control Corp
•
Filing: 1965-10-19
•
Granted: 1969-04-15
•
Expires: 1985-10-19
Abstract
No abstract record available.
Inventors
- 👤 Eugene B Seeley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:30
CPC Classifications
G; G01; G01P; G01P13/00; G01P13/0006; G01P13/006; G01F; G01F1/00; G01F1/68; G01F1/684; G01F1/6847
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2446283A
Cited
GB601298A
Cited
US2543588A
Cited
US2994222A
Cited
US3030806A
Cited
US3196679A
Cited
IT1238730B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |