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US3491148A
Expired / Lapsed
US
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Production of amines from mixtures containing n-amyl alcohol and cyclopentanol
Assignee: BASF SE
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Filing: 1967-02-13
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Granted: 1970-01-20
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Expires: 1987-02-13
Abstract
No abstract record available.
Inventors
- 👤 Siegfried Winderl
- 👤 Hubert Corr
- 👤 Erich Haarer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:28
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/04; C07C209/14; C07C209/16; C07C211/00; C07C211/01; C07C211/02; C07C211/03; C07C211/08; C07C211/33; C07C211/34; C07C211/35
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2043965A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |