US3530111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-insoluble phenyl-azo-phenyl dyestuffs
Assignee: BASF Schweiz AG
•
Filing: 1966-12-20
•
Granted: 1970-09-22
•
Expires: 1986-12-20
Abstract
No abstract record available.
Inventors
- 👤 Hansjoerg Angliker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:33
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/06; C09B29/08; C09B29/0025; D; D06; D06P; D06P3/00; D06P3/34; D06P3/52; D06P3/54; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2153018A
Cited
US2204607A
Cited
US2191040A
Cited
US2216446A
Cited
CH363108A
Cited
US3081295A
Cited
US3280101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |