US2527296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rust-preventive compositions
Assignee: TIDE WATER ASSOCIATED OIL Co
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Filing: 1948-04-21
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Granted: 1950-10-24
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Expires: 1968-04-21
Abstract
No abstract record available.
Inventors
- 👤 John W Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:29
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/10; C10M2219/00; C10M2219/04; C10M2219/044; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10N; C10N2030/00; C10N2030/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A RUST-PREVENTIVE COMPOSITION COMPRISING A LIQUID HYDROCARBON HAVING DISSOLVED THEREIN (A) ABOUT 0.1 TO ABOUT 10% BY WEIGHT OF SIAD COMPOSITION OF A RUST-INHIBITING SALT FORMED BY AN ACID ESTER OF PHOSPHORIC ACID CONTAINING A HYDROCARBON GROUP OF ABOUT 4 TO 30 CARBON ATOMS WITH AN OXAZOLINE COMPOUND CONTAINING AN ALIPHATIC GROUP OF ABOUT 4 TO 30 CARBON ATOMS AND (B) AN OIL-SOLUBLE RUST-INHIBITING METAL SULFONATE FROM THE GROUP CONSISTING OF ALKALI AND ALKALINE EARTH METAL SULFONATES IN AN AMOUNT OF ABOUT 0.5 TO 15% BASED ON THE WEIGHT OF SAID COMPOSITION SUFFICIENT TO IMPART TO SAID COMPOSITION RUST-PREVENTIVE CHARACTERISTICS IN EXCESS OF THE SUM OF THE INDIVIDUAL EFFECTIVENESS OF THE SALT AND SULFONATE.
Claim 2
Dependent Claim
114 words
A RUST-PREVENTIVE COMPOSITION COMPRISING A LIQUID HYDROCARBON HAVING DISSOLVED THEREIN (A) ABOUT 0.1 TO ABOUT 10% BY WEIGHT OF SIAD COMPOSITION OF A RUST-INHIBITING SALT FORMED BY AN ACID ESTER OF PHOSPHORIC ACID CONTAINING A HYDROCARBON GROUP OF ABOUT 4 TO 30 CARBON ATOMS WITH AN OXAZOLINE COMPOUND CONTAINING AN ALIPHATIC GROUP OF ABOUT 4 TO 30 CARBON ATOMS AND (B) AN OIL-SOLUBLE RUST-INHIBITING METAL SULFONATE FROM THE GROUP CONSISTING OF ALKALI AND ALKALINE EARTH METAL SULFONATES IN AN AMOUNT OF ABOUT 0.5 TO 15% BASED ON THE WEIGHT OF SAID COMPOSITION SUFFICIENT TO IMPART TO SAID COMPOSITION RUST-PREVENTIVE CHARACTERISTICS IN EXCESS OF THE SUM OF THE INDIVIDUAL EFFECTIVENESS OF THE SALT AND SULFONATE.
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) | 1953-10-23 | 1954-04-24 | 1954-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-23 | 1958-04-24 | 1958-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-23 | 1962-04-24 | 1962-10-24 | $7700.00 | Window Closed / Lapsed |