US3390168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disperse dyestuffs
Assignee: Bayer AG
•
Filing: 1964-12-04
•
Granted: 1968-06-25
•
Expires: 1984-12-04
Abstract
No abstract record available.
Inventors
- 👤 Brack Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:02
CPC Classifications
C; C07; C07D; C07D275/00; C07D275/02; C07D279/00; C07D279/02; C07D295/00; C07D295/22; C07D295/26; C08; C08K; C08K5/00; C08K5/36; C08K5/43; C09; C09B; C09B23/00; C09B23/14; C09B23/143; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE582316A
Cited
US3141018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |