US2726238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxime azo dyestuffs
Assignee: Bayer AG
•
Filing: 1954-02-16
•
Granted: 1955-12-06
•
Expires: 1974-02-16
Abstract
No abstract record available.
Inventors
- 👤 Morschel Heinrich
- 👤 Wedemeyer Karlfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:53
CPC Classifications
C; C09; C09B; C09B35/00; C09B35/02; C09B35/021; C09B35/023; C09B45/00; C09B45/02; C09B45/24; C09B45/38
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
6 words
POLYAZO DYESTUFF CORRESPONDING TO 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) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |