US1694562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing dyeings fast to light
Assignee: Grasselli Dyestuff Corp
•
Filing: 1926-12-15
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Granted: 1928-12-11
•
Expires: 1946-12-15
Abstract
No abstract record available.
Inventors
- 👤 Rabe Paul
- 👤 Stotter Hermann
- 👤 Wenk Berthold
- 👤 Schepss Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:44
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/673; D06P1/67316; D06P1/67325
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) | 1931-12-11 | 1932-06-11 | 1932-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-12-11 | 1936-06-11 | 1936-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-12-11 | 1940-06-11 | 1940-12-11 | $7700.00 | Window Closed / Lapsed |