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Patent US3001941A successfully refreshed from Google Patents.
US3001941A
Expired / Lapsed
US
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Lubricants containing a depositcontrol additive
Assignee: Texaco Inc
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Filing: 1955-12-23
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Granted: 1961-09-26
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Expires: 1975-12-23
Abstract
No abstract record available.
Inventors
- 👤 Kenneth L Dille
- 👤 Stanley R Newman
- 👤 Robert Y Heisler
- 👤 Alpert Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:44
CPC Classifications
C; C10; C10M; C10M145/00; C10M145/18; C10M145/24; C10M145/26; C10M145/38; C10M2203/00; C10M2203/10; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/28; C10M2207/282; C10M2207/30; C10M2207/304; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/106; C10M2209/109; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/085; C10M2221/00; C10M2221/02; C10M2221/04; C10M2221/043; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10N; C10N2010/00; C10N2010/04; C10N2020/00; C10N2020/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A LUBRICATING OIL CONTAINING A POLYGLYCOL CARBONATE ESTER HAVING A CARBON TO OXYGEN RATIO BELOW 2.5, A BOILING POINT ABOVE 650*F. AND THE FOLLOWING GENERAL FORMULA
Claim 2
Dependent Claim
26 words
A LUBRICATING OIL CONTAINING A POLYGLYCOL CARBONATE ESTER HAVING A CARBON TO OXYGEN RATIO BELOW 2.5, A BOILING POINT ABOVE 650*F. AND THE FOLLOWING GENERAL FORMULA
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) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |