US1878243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for manufacturing azodyestuffs
Assignee: General Aniline Works Inc
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Filing: 1928-11-12
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Granted: 1932-09-20
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Expires: 1948-11-12
Abstract
No abstract record available.
Inventors
- 👤 Laska Leopold
- 👤 Zitscher Arthur
- 👤 Christ Wilhelm
- 👤 Petzold Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:07
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/10; C09B29/18; C09B29/20
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) | 1935-09-20 | 1936-03-21 | 1936-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-09-20 | 1940-03-21 | 1940-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-09-20 | 1944-03-21 | 1944-09-20 | $7700.00 | Window Closed / Lapsed |