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Patent US3371118A successfully refreshed from Google Patents.
US3371118A
Expired / Lapsed
US
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Amination process for aliphatic tertiary amines
Assignee: ConocoPhillips Co
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Filing: 1964-05-08
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Granted: 1968-02-27
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Expires: 1984-05-08
Abstract
No abstract record available.
Inventors
- 👤 Allan J Lundeen
- 👤 Kaye L Motz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:51
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/04; C07C209/06; C07C209/08; C07C17/00; C07C17/093; C07C17/10
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) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |