US2621158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant
Assignee: Sinclair Refining Co
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Filing: 1949-02-02
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Granted: 1952-12-09
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Expires: 1969-02-02
Abstract
No abstract record available.
Inventors
- 👤 Ford C Teeter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:23
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2219/00; C10M2219/04; C10M2219/044; C10M2223/00; C10M2223/12; C10M2225/00; C10M2225/04; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A LUBRICATING OIL COMPOSITION COMPRISING PREDOMINANTLY A MINERAL OIL AND CONTAINING ABOUT 0.1 TO 10 PER CENT OF A COMPOUND PREPARED BY THE REACTION AT ABOUT 100* TO 200* F. OF ABOUT 0.5 TO 5.0 MOLES OF A SULFUR CHLORIDE WITH THE REACTION PRODUCT PREPARED AT ABOUT 250* TO 400* F. OF ABOUT 5 TO 9 MOLES OF A BICYCLIC TERPENE, ABOUT 2 MOLES OF A PHOSPHORUS SULFIDE, AND ABOUT 0.5 TO 3.0 MOLES OF A COMPOUND SELECTED FROM THE CLASS CONSISTING OF LOWER ALKYLATED MONOHYDRIC PHENOLS AND LOWER ALIPHATIC MONOHYDRIC ALCOHOLS.
Claim 2
Dependent Claim
92 words
A LUBRICATING OIL COMPOSITION COMPRISING PREDOMINANTLY A MINERAL OIL AND CONTAINING ABOUT 0.1 TO 10 PER CENT OF A COMPOUND PREPARED BY THE REACTION AT ABOUT 100* TO 200* F. OF ABOUT 0.5 TO 5.0 MOLES OF A SULFUR CHLORIDE WITH THE REACTION PRODUCT PREPARED AT ABOUT 250* TO 400* F. OF ABOUT 5 TO 9 MOLES OF A BICYCLIC TERPENE, ABOUT 2 MOLES OF A PHOSPHORUS SULFIDE, AND ABOUT 0.5 TO 3.0 MOLES OF A COMPOUND SELECTED FROM THE CLASS CONSISTING OF LOWER ALKYLATED MONOHYDRIC PHENOLS AND LOWER ALIPHATIC MONOHYDRIC ALCOHOLS.
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) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |