US652456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blue trisazo dye and process of making same.
Assignee: Sandoz AG
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Filing: 1899-08-22
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Granted: 1900-06-26
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Expires: 1919-08-22
Abstract
No abstract record available.
Inventors
- 👤 Melchior Boeniger
- 👤 Jan Lagutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:40
CPC Classifications
C; C09; C09B; C09B35/00; C09B35/38; C09B35/44; C09B35/46; C09B35/463
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) | 1903-06-26 | 1903-12-26 | 1904-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-06-26 | 1907-12-26 | 1908-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-06-26 | 1911-12-26 | 1912-06-26 | $7700.00 | Window Closed / Lapsed |