Patent US2810697A successfully refreshed from Google Patents.
US2810697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resinous products and lubricant compositions containing them
Assignee: Gulf Oil Corp
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Filing: 1954-05-27
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Granted: 1957-10-22
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Expires: 1974-05-27
Abstract
No abstract record available.
Inventors
- 👤 Troy L Cantrell
- 👤 John G Peters
- 👤 Herschel G Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:46
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C08; C08G; C08G8/00; C08G8/28; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2221/00; C10M2221/02; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/02; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
THE PROCESS OF PREPARING AN OIL SOLUBLE, METAL AND SULFUR CONTAINING, PERMANENTLY THERMOPLASTIC, RESINOUS CONDENSATION PRODUCT WHICH COMPRISES CONDENSING IN AN AQUEOUS MEDIUM FORMALDEHYDE, AMMONIUM SULFIDE, AND ALKALINE EARTH METAL HYDROXIDE AND AN ALKYLATED MONOHYDRIC PHENOL HAVING AT LEAST ONE FREE REACTIVE POSITION IN THE NUCLEUS, AT LEAST ON ALKYL GROUP OF SUCH ALKYLATED PHENOL CONTAINING AT LEAST 4 CARBON ATOMS; AT LEAST ONE MOL OF FORMALDEHYDE BEING EMPLYED FOR EVERY TWO MOLS OF THE PHENOL, THE RELATIVE AMOUNTS OF AMMONIUM SULFIDE AND ALKALINE EARTH METAL HYDROXIDE BEING SUCH AS TO YIELD A RESIN CONTAINING AT LEAST ABOUT 0.5 PERCENT BY WEIGHT OF SULFUR, AND AT LEAST ONE EQUIVALENT OF THE TOTAL OF AMMONIUM SULFIDE AND ALKALINE EARTH METAL HYDROXIDE BEING EMPLOYED FOR EVERY TWO MOLS OF THE PHENOL; THE CONDENSATION BEING CONDUCTED TO AVOID SUBSTANTIAL REACTION BETWEEN THE PHENOL AND FORMALDEHYDE IN THE ABSENCE OF THE AMMONIUM SULFIDE AND ALKALINE EARTH METAL HYDROXIDE.
Claim 2
Dependent Claim
154 words
THE PROCESS OF PREPARING AN OIL SOLUBLE, METAL AND SULFUR CONTAINING, PERMANENTLY THERMOPLASTIC, RESINOUS CONDENSATION PRODUCT WHICH COMPRISES CONDENSING IN AN AQUEOUS MEDIUM FORMALDEHYDE, AMMONIUM SULFIDE, AND ALKALINE EARTH METAL HYDROXIDE AND AN ALKYLATED MONOHYDRIC PHENOL HAVING AT LEAST ONE FREE REACTIVE POSITION IN THE NUCLEUS, AT LEAST ON ALKYL GROUP OF SUCH ALKYLATED PHENOL CONTAINING AT LEAST 4 CARBON ATOMS; AT LEAST ONE MOL OF FORMALDEHYDE BEING EMPLYED FOR EVERY TWO MOLS OF THE PHENOL, THE RELATIVE AMOUNTS OF AMMONIUM SULFIDE AND ALKALINE EARTH METAL HYDROXIDE BEING SUCH AS TO YIELD A RESIN CONTAINING AT LEAST ABOUT 0.5 PERCENT BY WEIGHT OF SULFUR, AND AT LEAST ONE EQUIVALENT OF THE TOTAL OF AMMONIUM SULFIDE AND ALKALINE EARTH METAL HYDROXIDE BEING EMPLOYED FOR EVERY TWO MOLS OF THE PHENOL; THE CONDENSATION BEING CONDUCTED TO AVOID SUBSTANTIAL REACTION BETWEEN THE PHENOL AND FORMALDEHYDE IN THE ABSENCE OF THE AMMONIUM SULFIDE AND ALKALINE EARTH METAL HYDROXIDE.
References Cited (Backward Citations)
US2506900A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |