US3356672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyes containing trimellithamide groups
Assignee: BASF SE
•
Filing: 1965-02-16
•
Granted: 1967-12-05
•
Expires: 1985-02-16
Abstract
No abstract record available.
Inventors
- 👤 Schefczik Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:22
CPC Classifications
C; C09; C09B; C09B43/00; C09B43/12; C09B43/136; C09B43/145; C09B43/15; C04; C04B; C04B16/00; C08; C08K; C08K5/00; C08K5/0008; C08K5/0041; C08K5/16; C08K5/34; C08K5/3412; C08K5/3415; C08K5/3417; C09B1/00; C09B1/16; C09B1/20; C09B1/36; C09B1/42; C09B1/44; C09B1/50; C09B1/56; C09B1/58; C09B3/00; C09B43/124; C09B5/00; C09B69/00; Y; Y10; Y10S; Y10S524/00; Y10S524/925; Y10S524/929
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A DYE OF THE FORMULA
Claim 2
Dependent Claim
5 words
A DYE OF THE FORMULA
References Cited (Backward Citations)
US2159542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |