Patent US2835688A successfully refreshed from Google Patents.
US2835688A
Expired / Lapsed
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Preparation of fluid polyvalent metal phenates
Assignee: Lubrizol Corp
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Filing: 1954-01-04
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Granted: 1958-05-20
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Expires: 1974-01-04
Abstract
No abstract record available.
Inventors
- 👤 Suer William M Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:07
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/20; C10M159/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A METHOD FOR PRODUCING FLUID, OIL-SOLUBLE POLYVALENT METAL SALTS OF A PHENOLIC COMPOUND, WHICH PHENOLIC COMPOUND CONTAINS A TOTAL OF AT LEAST 10 CARBON ATOMS AND LESS THAN 60 ALIPHATIC CARBON ATOMS, WHICH PROCESS COMPRISES THE STEPS OF: (A) PREPARING A SOLUTION OF AT LEAST ONE POLYVALENT METAL SALT OF THE PHENOLIC COMPOUND IN AN ORGANIC SOLVENT, SAID POLYVALENT METAL SALT SELECTED FROM THE CLASS CONSISTING OF MAGNESIUM, ZINC, BARIUM, CALCIUM, STORNTIUM, MANGANESE, CADMIUM, ALUNIUM, LEAD, IRON, AND COBALT SALTS; (B) EVAPORATING SUBSTANTIALLY ALL OF SAID ORGANIC SOLVENT FROM SUCH SOLUTION AT A TEMPERATURE BELOW THE DECOMPOSITION TEMPERATURE OF SAID POLYVALENT METAL SALT; AND (C) REACTING WITH THE RESULTING MATERIAL FROM 0.1 TO 2.5 MOLES OF WATER PER MOLE OF POLYVALENT METAL SALT PRESENT.
Claim 2
Independent Claim
124 words
A METHOD FOR PRODUCING FLUID, OIL-SOLUBLE POLYVALENT METAL SALTS OF A PHENOLIC COMPOUND, WHICH PHENOLIC COMPOUND CONTAINS A TOTAL OF AT LEAST 10 CARBON ATOMS AND LESS THAN 60 ALIPHATIC CARBON ATOMS, WHICH PROCESS COMPRISES THE STEPS OF: (A) PREPARING A SOLUTION OF AT LEAST ONE POLYVALENT METAL SALT OF THE PHENOLIC COMPOUND IN AN ORGANIC SOLVENT, SAID POLYVALENT METAL SALT SELECTED FROM THE CLASS CONSISTING OF MAGNESIUM, ZINC, BARIUM, CALCIUM, STORNTIUM, MANGANESE, CADMIUM, ALUNIUM, LEAD, IRON, AND COBALT SALTS; (B) EVAPORATING SUBSTANTIALLY ALL OF SAID ORGANIC SOLVENT FROM SUCH SOLUTION AT A TEMPERATURE BELOW THE DECOMPOSITION TEMPERATURE OF SAID POLYVALENT METAL SALT; AND (C) REACTING WITH THE RESULTING MATERIAL FROM 0.1 TO 2.5 MOLES OF WATER PER MOLE OF POLYVALENT METAL SALT PRESENT.
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) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |