US3345355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-methylene indoline azomethine groupcontaining basic dyestuffs
Assignee: Bayer AG
•
Filing: 1966-04-13
•
Granted: 1967-10-03
•
Expires: 1986-04-13
Abstract
No abstract record available.
Inventors
- 👤 Raue Roderich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:36
CPC Classifications
C; C09; C09B; C09B23/00; C09B23/16; C09B23/162; C09B23/164; C09B26/00; C09B26/02; C09B26/04; C09B44/00; C09B44/10; C09B44/102; C09B44/12; C09B44/123; C09B55/00; C09B55/002; C09B55/003; C09B56/00; C09B56/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A BASIC DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
6 words
A BASIC DYESTUFF OF THE FORMULA
References Cited (Backward Citations)
US2815338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |