Patent US2590827A successfully refreshed from Google Patents.
US2590827A
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US
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Turbidimeter
Assignee: Wyeth Holdings LLC
•
Filing: 1948-10-29
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Granted: 1952-03-25
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Expires: 1968-10-29
Abstract
No abstract record available.
Inventors
- 👤 Robert F Stamm
- 👤 Mariner Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:38
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/47; G01N21/49; G01N21/51
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE23023E
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US1834905A
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US1971443A
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US1977359A
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US2019871A
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US2280993A
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US2436262A
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US2486866A
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US2467057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |