Patent US2554972A successfully refreshed from Google Patents.
US2554972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibition of trichloroacetates
Assignee: Dow Chemical Co
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Filing: 1950-07-15
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Granted: 1951-05-29
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Expires: 1970-07-15
Abstract
No abstract record available.
Inventors
- 👤 Francis N Alquist
- 👤 Joseph L Wasco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:34
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/18; C23F11/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A COMPOSITION OF MATTER COMPRISING (1) A WATER-SOLUBLE SALT OF TRICHLOROACETIC ACID AND (2) AS A CORROSION INHIBITOR THEREFOR AN ALKALI METAL SALT OF A CHROMIUM ACID.
Claim 2
Dependent Claim
27 words
A COMPOSITION OF MATTER COMPRISING (1) A WATER-SOLUBLE SALT OF TRICHLOROACETIC ACID AND (2) AS A CORROSION INHIBITOR THEREFOR AN ALKALI METAL SALT OF A CHROMIUM ACID.
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) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |