US2856299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-displacing agent
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1956-02-24
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Granted: 1958-10-14
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Expires: 1976-02-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Roy A Westlund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:24
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
95 words
A LIQUID RUST PREVENTIVE COMPOSITION COMPRISNG ABOUT 75 TO 99 PARTS OF AN OLEAGINOUS BASE, ABOUT 0.5 TO 15 PARTS OF A PARTIAL ESTER OF A FATTY ACID HAVING ABOUT 12 TO 22 CARBON ATOMS PER MOLECULE AND AN ALIPHATIC POLYHYDRIC ALCOHOL HAVING ABOUT 3 TO 12 CARBON ATOMS PER MOLECULE, AND ABOUT .1 TO 10% OF WATER DISPLACING AGENT, SAID WATER DISPLACING AGENT BEING THE CONDENSATION PRODUCT (1) THE FATTY ACID-POLYAMINE REACTION PRODUCT OF SUBSTANTIALLY EQUI-MOLAR PORTIONS OF A FATTY ACID CONTAINING ABOUT 10 TO 22 CARBON ATOMS AND A POLYAMINE HAVING THE FORMULA
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) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |