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US3489784A
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US
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(chlorinated alpha,alpha,alpha - trifluoro-m-tolyl)acetonitriles,acetamides and acetic acids
Assignee: F Hoffmann La Roche AG
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Filing: 1967-03-30
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Granted: 1970-01-13
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Expires: 1987-03-30
Abstract
No abstract record available.
Inventors
- 👤 Josef Fellig
- 👤 Benjamin Pecherer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:19
CPC Classifications
C; C07; C07C; C07C57/00; C07C57/52; C07C57/58; C07C17/00; C07C17/26; C07C17/32; C07C25/00; C07C25/02; C07C25/13; C07C51/00; C07C51/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3148189A
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 |