US3413280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monoazo dyestuffs
Assignee: BASF Schweiz AG
•
Filing: 1964-04-15
•
Granted: 1968-11-26
•
Expires: 1984-04-15
Abstract
No abstract record available.
Inventors
- 👤 Rene De Montmollin
- 👤 Henri Riat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:31
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/44; C09B62/465; C09B62/47; C09B62/473; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/917; Y10S8/92; Y10S8/924
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A MONOAZO DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
6 words
A MONOAZO DYESTUFF OF THE FORMULA
References Cited (Backward Citations)
US2931795A
Cited
GB858183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |