US4556658B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
US4556658B1 - - Google Patents
Assignee: Bayer AG
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Filing: 1984-04-24
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Granted: 1987-09-15
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Expires: 2004-04-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:13
CPC Classifications
C; C07; C07D; C07D401/00; C07D401/02; C07D215/00; C07D215/02; C07D215/16; C07D215/48; C07D215/54; C07D215/56; A; A61; A61P; A61P31/00; A61P31/04; C07D401/04; C07D413/00; C07D413/02; C07D413/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-09-14 | 1991-03-16 | 1991-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-14 | 1995-03-16 | 1995-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-14 | 1999-03-16 | 1999-09-15 | $7700.00 | Window Closed / Lapsed |