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Patent US1589418A successfully refreshed from Google Patents.
US1589418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow-meter test cup
Assignee: Individual
•
Filing: 1921-06-06
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Granted: 1926-06-22
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Expires: 1941-06-06
Abstract
No abstract record available.
Inventors
- 👤 Francis S Woidich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:43
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1929-06-21 | 1929-12-21 | 1930-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-06-21 | 1933-12-21 | 1934-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-06-21 | 1937-12-21 | 1938-06-22 | $7700.00 | Window Closed / Lapsed |