US913514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Red dye.
Assignee: Bayer AG
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Filing: 1908-11-30
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Granted: 1909-02-23
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Expires: 1928-11-30
Abstract
No abstract record available.
Inventors
- 👤 Walter Koenig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:23
CPC Classifications
C; C07; C07D; C07D265/00; C07D265/28; C07D265/34; C07D265/36
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) | 1912-02-23 | 1912-08-24 | 1913-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-02-23 | 1916-08-24 | 1917-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-02-23 | 1920-08-24 | 1921-02-23 | $7700.00 | Window Closed / Lapsed |