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Patent US2485197A successfully refreshed from Google Patents.
US2485197A
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Dyestuff mixtures and process of making same
Assignee: BASF Schweiz AG
•
Filing: 1945-05-04
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Granted: 1949-10-18
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Expires: 1965-05-04
Abstract
No abstract record available.
Inventors
- 👤 Grossmann Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:08
CPC Classifications
C; C09; C09B; C09B1/00; C09B1/50; C09B1/51; C09B1/503; Y; Y10; Y10S; Y10S534/00; Y10S534/01
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-17 | 1953-04-18 | 1953-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-17 | 1957-04-18 | 1957-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-17 | 1961-04-18 | 1961-10-18 | $7700.00 | Window Closed / Lapsed |