US2514907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow measuring device
Assignee: Askania Regulator Co
•
Filing: 1945-06-13
•
Granted: 1950-07-11
•
Expires: 1965-06-13
Abstract
No abstract record available.
Inventors
- 👤 Ralph B Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:30
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/22; G01F1/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1903713A
Cited
US2102421A
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US2333884A
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US2358902A
Cited
US2442975A
Cited
US2383758A
Cited
US2414086A
Cited
US2416687A
Cited
US2418487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |