Patent US4571530A successfully refreshed from Google Patents.
Patent US3184453A successfully refreshed from Google Patents.
US3184453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3-dimethyl-substituted indoline dyestuffs
Assignee: Bayer AG
•
Filing: 1962-04-10
•
Granted: 1965-05-18
•
Expires: 1982-04-10
Abstract
No abstract record available.
Inventors
- 👤 Raue Roderich
- 👤 Muller Werner
- 👤 Weissel Oskar
- 👤 Coenen Ruth
- 👤 Coenen Gerda
- 👤 Coenen Barbara
- 👤 Coenen Hella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:25
CPC Classifications
C; C07; C07D; C07D403/00; C07D403/02; C07D403/06; C07D209/00; C07D209/02; C07D209/04; C07D209/08; C07D209/10; C07D209/18; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3442; C08K5/3445; C09; C09B; C09B23/00; C09B23/10; C09B23/105; D; D01; D01F; D01F1/00; D01F1/02; D01F1/06; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/924
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
GB366964A
Cited
US2280253A
Cited
US2265908A
Cited
US2350393A
Cited
US2369355A
Cited
US2639282A
Cited
BE551825A
Cited
US3090782A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |