Patent US1828592A successfully refreshed from Google Patents.
US1828592A
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Preparation of dyestuffs which are of value for obtaining fast tints on the different fibers and process of making same
Assignee: FIRM SOCIETY OF CHEMICAL INDUSTRY IN BASLE
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Filing: 1926-03-11
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Granted: 1931-10-20
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Expires: 1946-03-11
Abstract
No abstract record available.
Inventors
- 👤 Bommer Max
- 👤 Montmollin Guillaume De
- 👤 Frohlich Jaroslaw
- 👤 Grieshaber Fritz
- 👤 Jaeck Wolfgang
- 👤 Felix Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:10
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/008; C09B67/0092; D; D06; D06P; D06P1/00; D06P1/44; D06P1/46; D06P1/48; D06P1/50; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917
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) | 1934-10-19 | 1935-04-20 | 1935-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-10-19 | 1939-04-20 | 1939-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-10-19 | 1943-04-20 | 1943-10-20 | $7700.00 | Window Closed / Lapsed |