Patent US2324304A successfully refreshed from Google Patents.
US2324304A
Expired / Lapsed
US
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Turbidity meter
Assignee: Individual
•
Filing: 1939-08-24
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Granted: 1943-07-13
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Expires: 1959-08-24
Abstract
No abstract record available.
Inventors
- 👤 Katzman Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:59
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/85; G01N21/8507
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) | 1946-07-12 | 1947-01-11 | 1947-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-07-12 | 1951-01-11 | 1951-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-07-12 | 1955-01-11 | 1955-07-13 | $7700.00 | Window Closed / Lapsed |