US3060168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-insoluble disazo-dyestuffs
Assignee: BASF Schweiz AG
•
Filing: 1960-07-12
•
Granted: 1962-10-23
•
Expires: 1980-07-12
Abstract
No abstract record available.
Inventors
- 👤 Liechti Hans Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:48
CPC Classifications
C; C09; C09B; C09B31/00; C09B31/02; C09B31/06; C09B43/00; C09B43/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A DISAZO-DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
5 words
A DISAZO-DYESTUFF OF THE FORMULA
References Cited (Backward Citations)
US2134521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |