US2092429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing vegetable fiber
Assignee: BASF Schweiz AG
•
Filing: 1936-02-26
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Granted: 1937-09-07
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Expires: 1956-02-26
Abstract
No abstract record available.
Inventors
- 👤 Straub Fritz
- 👤 Anderau Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:54
CPC Classifications
C; C09; C09B; C09B45/00; C09B45/38; C09B45/42; C09B45/02; C09B45/24; C09B45/28
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) | 1940-09-06 | 1941-03-08 | 1941-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-09-06 | 1945-03-08 | 1945-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-09-06 | 1949-03-08 | 1949-09-07 | $7700.00 | Window Closed / Lapsed |