US2560209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conductivity cell
Assignee: Ecolab Inc
•
Filing: 1949-01-18
•
Granted: 1951-07-10
•
Expires: 1969-01-18
Abstract
No abstract record available.
Inventors
- 👤 George L Borell
- 👤 Marcus I Nystuen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:52
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/06; G01N27/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1912997A
Cited
US2082213A
Cited
US2370609A
Cited
US2437134A
Cited
US2450459A
Cited
US2456117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |