US3270013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-phenylamino-anthraquinone compounds
Assignee: Novartis AG
•
Filing: 1965-10-18
•
Granted: 1966-08-30
•
Expires: 1985-10-18
Abstract
No abstract record available.
Inventors
- 👤 Hindermann Peter
- 👤 Kolliker Hans Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:21
CPC Classifications
C; C09; C09B; C09B1/00; C09B1/16; C09B1/20; C09B1/26; C09B1/32; C09B1/50; C09B1/51; C09B1/514
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
AN ANTHRAQUINONE DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
6 words
AN ANTHRAQUINONE DYESTUFF OF THE FORMULA
Claim 3
Dependent Claim
6 words
THE ANTHRAQUINONE DYESTUFF OF THE FORMULA
Claim 4
Dependent Claim
6 words
THE ANTHRAQUINONE DYESTUFF 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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |