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US3223721A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-(4-bromophenyl), 3-methoxy, 3-methyl-urea
Assignee: BASF Schweiz AG
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Filing: 1965-02-16
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Granted: 1965-12-14
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Expires: 1985-02-16
Abstract
No abstract record available.
Inventors
- 👤 Martin Henry
- 👤 Aebi Hans
- 👤 Ebner Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:03
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/16; C07D295/20; C07D295/215; C07C; C07C273/00; C07C273/18; C07C273/1854; C07C275/00; C07C275/28; C07C275/30; C07C275/38; C07C275/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2655447A
Cited
US2960534A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |