US2870134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of calcium phenolates and sulfurized derivatives thereof
Assignee: Texaco Inc
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Filing: 1956-12-12
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Granted: 1959-01-20
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Expires: 1976-12-12
Abstract
No abstract record available.
Inventors
- 👤 Herman D Kluge
- 👤 Drake Kenneth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:43
CPC Classifications
C; C07; C07F; C07F3/00; C07F3/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
IN A PROCESS FOR PRODUCTIONOF CALCIUM PHENOLATE AND SULFURIZED CALCIUM PHENOLATE WHEREIN A LIQUID REACTION MEDIUM IS USED AND THE REACTANTS INCLUDE AN OILSOLUBLE PHENOL AND AT LEAST ONE EQUIVALENT OF PULVERULENT CALCIUM OXIDE PER EQUIVALENT OF THE PHENOL, THE IMPROVEMENT WHICH COMPRISES: USING AS THE REACTION MEDIUM A MONOHYDRIC ALCOHOL HAVING ATMOSPHERIC BOILING POINT BETWEEN ABOUT 173* AND ABOUT 340* F; FORMING A MIXTURE
Claim 2
Dependent Claim
65 words
IN A PROCESS FOR PRODUCTIONOF CALCIUM PHENOLATE AND SULFURIZED CALCIUM PHENOLATE WHEREIN A LIQUID REACTION MEDIUM IS USED AND THE REACTANTS INCLUDE AN OILSOLUBLE PHENOL AND AT LEAST ONE EQUIVALENT OF PULVERULENT CALCIUM OXIDE PER EQUIVALENT OF THE PHENOL, THE IMPROVEMENT WHICH COMPRISES: USING AS THE REACTION MEDIUM A MONOHYDRIC ALCOHOL HAVING ATMOSPHERIC BOILING POINT BETWEEN ABOUT 173* AND ABOUT 340* F; FORMING A MIXTURE
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) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |