US3437595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of overbased alkyl phenates suitable for use in lubricant additives
Assignee: Orobis Ltd
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Filing: 1966-10-05
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Granted: 1969-04-08
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Expires: 1986-10-05
Abstract
No abstract record available.
Inventors
- 👤 Keith Coupland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:40
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/20; C10M159/22; C10M2201/00; C10M2201/06; C10M2201/063; C10M2219/00; C10M2219/02; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2050/00; C10N2050/015; C10N2050/02
Claims Analysis
Total Claims: 0
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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) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |