US920151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trisazo dye.
Assignee: Bayer AG
•
Filing: 1909-01-28
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Granted: 1909-05-04
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Expires: 1929-01-28
Abstract
No abstract record available.
Inventors
- 👤 Heinrich Jordan
- 👤 Wilhelm Neelmeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:00
CPC Classifications
C; C09; C09B; C09B31/00; C09B31/16; C09B31/22
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) | 1912-05-03 | 1912-11-02 | 1913-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-05-03 | 1916-11-02 | 1917-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-05-03 | 1920-11-02 | 1921-05-04 | $7700.00 | Window Closed / Lapsed |