US2949467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perinone triazino dyestuffs
Assignee: BASF Schweiz AG
•
Filing: 1958-03-11
•
Granted: 1960-08-16
•
Expires: 1978-03-11
Abstract
No abstract record available.
Inventors
- 👤 Staeuble Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:52
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/04; C09B62/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A PERINONE DYESTUFF SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
13 words
A PERINONE DYESTUFF SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |