Patent US2649415A successfully refreshed from Google Patents.
US2649415A
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Corrosion inhibitor composition
Assignee: GAF Chemicals Corp
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Filing: 1949-12-30
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Granted: 1953-08-18
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Expires: 1969-12-30
Abstract
No abstract record available.
Inventors
- 👤 Robert L Sundberg
- 👤 Charles P Albus
- 👤 James M Cross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:13
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/02; C23G1/04; C23G1/06; Y; Y10; Y10S; Y10S507/00; Y10S507/933; Y10S507/934; Y10S507/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A CORROSION INHIBITING COMPOSITION FOR USE IN THE TREATMENT OF METALS WITH ACID BATHS, WHICH CONSISTS ESSENTIALLY OF A SUBSTANTIALLY WATER-INSOLUBLE PRIMARY AMINE OF THE CLASS CONSISTING OF ALIPHATIC AND ALICYCLIC MONOAMINES OF 12 TO 20 CARBON ATOMS, AND A NON-IONIC DISPERSING AGENT OF THE CLASS CONSISTING OF THE POLYALKOXYLATED DERIVATIVES OF ALIPHATIC AND ALICYCLIC MONOCARBOXY ACIDS, OF ALIPHATIC AND ALICYCLIC MONOHYDRIC ALCOHOLS AND OF ALKYLPHENOLS, SAID ACIDS, ALCOHOLS AND ALKYLPHENOLS HAVING 12 TO 24 CARBON ATOMS, SAID DERIVATIVES THEREOF CONTAINING AT LEAST 4 OXYALKYLENE RADICALS AND SAID OXYALKYLENE RADICALS EACH CONTAINING 2 TO 3 CARBON ATOMS, THE WEIGHT RATIO OF SAID AMINE TO SAID DISPERSING AGENT BEING SUBSTANTIALLY WITHIN THE RANGE OF 1:1 TO 1:9.
Claim 2
Dependent Claim
116 words
A CORROSION INHIBITING COMPOSITION FOR USE IN THE TREATMENT OF METALS WITH ACID BATHS, WHICH CONSISTS ESSENTIALLY OF A SUBSTANTIALLY WATER-INSOLUBLE PRIMARY AMINE OF THE CLASS CONSISTING OF ALIPHATIC AND ALICYCLIC MONOAMINES OF 12 TO 20 CARBON ATOMS, AND A NON-IONIC DISPERSING AGENT OF THE CLASS CONSISTING OF THE POLYALKOXYLATED DERIVATIVES OF ALIPHATIC AND ALICYCLIC MONOCARBOXY ACIDS, OF ALIPHATIC AND ALICYCLIC MONOHYDRIC ALCOHOLS AND OF ALKYLPHENOLS, SAID ACIDS, ALCOHOLS AND ALKYLPHENOLS HAVING 12 TO 24 CARBON ATOMS, SAID DERIVATIVES THEREOF CONTAINING AT LEAST 4 OXYALKYLENE RADICALS AND SAID OXYALKYLENE RADICALS EACH CONTAINING 2 TO 3 CARBON ATOMS, THE WEIGHT RATIO OF SAID AMINE TO SAID DISPERSING AGENT BEING SUBSTANTIALLY WITHIN THE RANGE OF 1:1 TO 1:9.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |