US3014041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heterocyclic substituted coumarin colours
Assignee: Novartis AG
•
Filing: 1959-06-15
•
Granted: 1961-12-19
•
Expires: 1979-06-15
Abstract
No abstract record available.
Inventors
- 👤 Hausermann Heinrich
- 👤 Voltz Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:15
CPC Classifications
C; C07; C07D; C07D407/00; C07D407/02; C07D407/04; C07D417/00; C07D417/02; C07D417/04; C09; C09B; C09B23/00; C09B23/10; C09B23/102; C09B57/00; C09B57/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULAE
Claim 2
Dependent Claim
12 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULAE
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) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |