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US3489797A
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US
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Production of carbamyl chlorides and bromides from corresponding n-(alpha-chloroalkyl or alpha-bromoalkyl) - carbamyl halides
Assignee: BASF SE
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Filing: 1968-03-20
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Granted: 1970-01-13
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Expires: 1988-03-20
Abstract
No abstract record available.
Inventors
- 👤 Karl-Heinz Koenig
- 👤 Horst Pommer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:26
CPC Classifications
C; C07; C07D; C07D265/00; C07D265/28; C07D265/30; C07C; C07C271/00; C07C271/04; C07D211/00; C07D211/04; C07D211/06; C07D211/08; C07D211/18; C07D211/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2409829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |