US3822209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant additives
Assignee: Ethyl Corp
•
Filing: 1966-02-01
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Granted: 1974-07-02
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Expires: 1986-02-01
Abstract
Abstract HIGH MOLECULAR WEIGHT ALLYLIC AMINES ARE MADE BY HALOGENATING HIGH MOLECULAR WEIGHT ALPHA OR BETA OLEFINS FOLLOWED BU REACTION WITH AMMONIA OR A PRIMARY OR SECONDARY MONOAMINE. THE PRODUCTS ARE DISPERSANTS FOR LUBRICATING OIL.
Inventors
- 👤 G Knapp
- 👤 Bel N Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:14
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/02; C07D295/027; C07D295/03; C10; C10M; C10M1/00; C10M1/08; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |