US2924972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid flowmeter
Assignee: Individual
•
Filing: 1955-12-30
•
Granted: 1960-02-16
•
Expires: 1975-12-30
Abstract
No abstract record available.
Inventors
- 👤 Arnold E Biermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:29
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/68
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1222492A
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US1724296A
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FR712351A
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US1987642A
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US2016660A
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US2329840A
Cited
US2446283A
Cited
US2633747A
Cited
US2591195A
Cited
US2543588A
Cited
US2647401A
Cited
AT177936B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |