Patent US5630784A successfully refreshed from Google Patents.
Patent US2667408A successfully refreshed from Google Patents.
US2667408A
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Prevention of rust
Assignee: Sinclair Refining Co
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Filing: 1949-10-05
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Granted: 1954-01-26
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Expires: 1969-10-05
Abstract
No abstract record available.
Inventors
- 👤 Milton P Kleinholz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:52
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/1805; C10L1/1808; C10L1/22; C10L1/222; C10L1/2222; C10L1/2225; C10L1/224; C10L1/232; C10L1/233; C10L1/2335
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A LIGHT PETROLEUM DISTILLATE TO WHICH A RUST INHIBITING PROPERTY HAS BEEN IMPARTED BY THE INCORPORATION OF APPROXIMATELY .5 TO 50 POUNDS PER 1,000 BARRELS OF DISTILLATE OF AN OXIDIZED MICROCRYSTALLINE WAX HAVING FROM 34 TO 55 CARBON ATOMS PER MOLECULE WHICH CONSISTS ESSENTIALLY OF CARBOXY ACIDS HAVING A SAPONIFICATION NUMBER IN EXCESS OF 100 AND NOT EXCEEDING 260, HAVING AN ACID NUMBER WITHIN THE RANGE OF ABOUT 70 TO 160 AND HAVING AN IODINE NUMBER LESS THAN ABOUT 20.
Claim 2
Dependent Claim
80 words
A LIGHT PETROLEUM DISTILLATE TO WHICH A RUST INHIBITING PROPERTY HAS BEEN IMPARTED BY THE INCORPORATION OF APPROXIMATELY .5 TO 50 POUNDS PER 1,000 BARRELS OF DISTILLATE OF AN OXIDIZED MICROCRYSTALLINE WAX HAVING FROM 34 TO 55 CARBON ATOMS PER MOLECULE WHICH CONSISTS ESSENTIALLY OF CARBOXY ACIDS HAVING A SAPONIFICATION NUMBER IN EXCESS OF 100 AND NOT EXCEEDING 260, HAVING AN ACID NUMBER WITHIN THE RANGE OF ABOUT 70 TO 160 AND HAVING AN IODINE NUMBER LESS THAN ABOUT 20.
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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) | 1957-01-25 | 1957-07-27 | 1958-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-25 | 1961-07-27 | 1962-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-25 | 1965-07-27 | 1966-01-26 | $7700.00 | Window Closed / Lapsed |