US2945866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vat dyestuffs of the acedianthrone series
Assignee: BASF Schweiz AG
•
Filing: 1957-09-30
•
Granted: 1960-07-19
•
Expires: 1977-09-30
Abstract
No abstract record available.
Inventors
- 👤 Caliezi Armin
- 👤 Kern Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:15
CPC Classifications
C; C09; C09B; C09B3/00; C09B3/78; C09B1/00; C09B1/16; C09B1/20; C09B1/26; C09B1/32; C09B3/02; C09B3/06; C09B3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A VAT DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
6 words
A VAT DYESTUFF OF THE FORMULA
References Cited (Backward Citations)
GB672906A
Cited
US2827644A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |