US1886480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyestuffs containing cellulose residues and process of making same
Assignee: Novartis AG
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Filing: 1931-02-17
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Granted: 1932-11-08
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Expires: 1951-02-17
Abstract
No abstract record available.
Inventors
- 👤 Robert Haller
- 👤 Alphonse Heckendorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:50
CPC Classifications
C; C08; C08B; C08B15/00; C08B15/05; C08B15/06; D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/642; D06P1/6426; D06P1/6429; D06P3/00; D06P3/58; D06P3/60; D06P3/66; D06P3/663; D06P3/68; D06P5/00; D06P5/22
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) | 1935-11-08 | 1936-05-09 | 1936-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-11-08 | 1940-05-09 | 1940-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-11-08 | 1944-05-09 | 1944-11-08 | $7700.00 | Window Closed / Lapsed |