Patent US2839991A successfully refreshed from Google Patents.
US2985590A
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Lubricating oil compositions comprising mercaptobenzothiazole ester derivatives
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1958-02-21
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Granted: 1961-05-23
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Expires: 1978-02-21
Abstract
No abstract record available.
Inventors
- 👤 Arnold J Morway
- 👤 Jeffrey H Bartlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:08
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/70; C07D277/74; C10M2219/00; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10N; C10N2040/00; C10N2040/02; C10N2040/08; C10N2040/20; C10N2040/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A LUBRICATING OIL AND A MINOR BUT LOAD CARRYING IMPROVED AMOUNT OF A COMPOUND HAVING A STRUCTURE CORRESPONDING TO THE FOLLOWING FORMULA
Claim 2
Dependent Claim
31 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A LUBRICATING OIL AND A MINOR BUT LOAD CARRYING IMPROVED AMOUNT OF A COMPOUND HAVING A STRUCTURE CORRESPONDING TO THE FOLLOWING FORMULA
References Cited (Backward Citations)
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US2841556A
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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) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |