Patent US2878155A successfully refreshed from Google Patents.
US2878155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slimicides
Assignee: ChampionX LLC
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Filing: 1956-11-13
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Granted: 1959-03-17
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Expires: 1976-11-13
Abstract
No abstract record available.
Inventors
- 👤 George A Cruickshank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:08
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/50
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
87 words
COMPOSITIONS HAVING SLIMICIDAL ACTIVITY COMPRISING AN AQUEOUS SOLUTION OF A COMPLEX OF A CUPRIC SALT OF A LOWER MOLECULAR WEIGHT, SATURATED, MONOFUNCTIONAL, FATTY ACID AND AN ALIPHATIC N-SUBSTITUTED TRIMETHYLENE DIAMINE, THE ALIPHATIC GROUP HAVING 5 TO 20 CARBONS, THE RATIO OF CUPRIC SALT TO DIAMINE FALLING BETWEEN 1:3 AND 1:10 RESPECTIVELY; AT LEAST ABOUT 25% ISOPROPANOL BY WEIGHT OF SAID SOLUTION, AND A CORROSION INHIBITOR SELECTED FROM THE GROUP CONSISTING OF PROPIONIC ACID AND BENZOIC ACID IN SUFFICIENT QUANTITY TO INHIBIT THE CORROSION OF MILD CARBON STEEL.
References Cited (Backward Citations)
US1968341A
Cited
US2267204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |