Patent US3504089A successfully refreshed from Google Patents.
US3504089A
Expired / Lapsed
US
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3,4,5-triarylcyclohexylamine compositions
Assignee: BASF Corp
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Filing: 1967-04-20
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Granted: 1970-03-31
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Expires: 1987-04-20
Abstract
No abstract record available.
Inventors
- 👤 Michael Mullen Robison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:42
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/63; A61K31/635; A61K31/33; A61K31/395
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2928829A
Cited
US3163645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-30 | 1973-09-29 | 1974-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-30 | 1977-09-29 | 1978-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-30 | 1981-09-29 | 1982-03-31 | $7700.00 | Window Closed / Lapsed |