US3382081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical composition and method
Assignee: Diamond Shamrock Corp
•
Filing: 1965-09-02
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Granted: 1968-05-07
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Expires: 1985-09-02
Abstract
No abstract record available.
Inventors
- 👤 Paul R Cutter
- 👤 Donald N Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:24
CPC Classifications
C; C08; C08G; C08G79/00; C09; C09D; C09D5/00; C09D5/08; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/24; C23C22/26; C23C22/27
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A CORROSION-INHIBITING BONDING COATING COMPOSITION FOR METAL SURFACES WHICH CONSISTS ESSENTIALLY OF A VOLATILE SOLVENT HAVING DISSOLVED THEREIN: (A) CHROMIC ACID IN A CONCENTRATION BETWEEN ABOUT 1 AND 400 GRAMS PER LITER; AND (B) AN ORGANIC COMPONENT WHICH IS COMPOSED OF AT LEAST ONE ALIPHATIC DICARBOXYLIC ACID SELECTED FROM A FIRST GROUP CONSISTING OF (1) SUCCINIC ACID IN THE AMOUNT OF 60% TO 90% BY WEIGHT OF SAID COMPONENT, AND (2) DICARBOXYLIC ACIDS OF THE STRUCTURE:
Claim 2
Dependent Claim
76 words
A CORROSION-INHIBITING BONDING COATING COMPOSITION FOR METAL SURFACES WHICH CONSISTS ESSENTIALLY OF A VOLATILE SOLVENT HAVING DISSOLVED THEREIN: (A) CHROMIC ACID IN A CONCENTRATION BETWEEN ABOUT 1 AND 400 GRAMS PER LITER; AND (B) AN ORGANIC COMPONENT WHICH IS COMPOSED OF AT LEAST ONE ALIPHATIC DICARBOXYLIC ACID SELECTED FROM A FIRST GROUP CONSISTING OF (1) SUCCINIC ACID IN THE AMOUNT OF 60% TO 90% BY WEIGHT OF SAID COMPONENT, AND (2) DICARBOXYLIC ACIDS OF THE STRUCTURE:
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |