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US3483253A
Expired / Lapsed
US
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Production of amines from aldehydes or ketones
Assignee: BASF SE
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Filing: 1966-02-07
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Granted: 1969-12-09
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Expires: 1986-02-07
Abstract
No abstract record available.
Inventors
- 👤 Karl Adam
- 👤 Erich Haarer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:50
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/86
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE848653C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |