US3542113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for measuring salt concentration in samples
Assignee: TSENTRALNY NAUCHNO ISSLEDOVATELSKY I PROEKTNO-KONSTRUKTORSKY KOTLOTURBINNY INST IMENI II
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Filing: 1968-06-11
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Granted: 1970-11-24
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Expires: 1988-06-11
Abstract
No abstract record available.
Inventors
- 👤 Alexei Alexeevich Mostofin
- 👤 Nina Sergeevna Sorokina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:51
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/06; G01N1/00; G01N1/28; G01N1/40
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) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |