Patent US983486A successfully refreshed from Google Patents.
US983486A
Expired / Lapsed
US
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Monoazo dyestuff and process of making same.
Assignee: Hoechst AG
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Filing: 1910-05-25
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Granted: 1911-02-07
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Expires: 1930-05-25
Abstract
No abstract record available.
Inventors
- 👤 Otto Ernst
- 👤 Heinrich Eichwede
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:04
CPC Classifications
C; C09; C09B; C09B45/00; C09B45/02; C09B45/14; C09B45/16
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) | 1914-02-06 | 1914-08-08 | 1915-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-02-06 | 1918-08-08 | 1919-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-02-06 | 1922-08-08 | 1923-02-07 | $7700.00 | Window Closed / Lapsed |