US2739151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of isoindolenine derivatives
Assignee: Bayer AG
•
Filing: 1952-09-04
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Granted: 1956-03-20
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Expires: 1972-09-04
Abstract
No abstract record available.
Inventors
- 👤 Rosch Georg
- 👤 Wolf Walther
- 👤 Vollmann Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:23
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
THE PROCESS FOR THE PRODUCTION 1-AMINO-3-IMINOISOINDOLENINE DERIVATIVES WHICH COMPRISES REACTING AT TEMPERATURES UP TO ABOUT 160*C. AN 1-AMINO-2-IMINOISOINDOLENINE OF THE GENERAL FORMULA
Claim 2
Dependent Claim
22 words
THE PROCESS FOR THE PRODUCTION 1-AMINO-3-IMINOISOINDOLENINE DERIVATIVES WHICH COMPRISES REACTING AT TEMPERATURES UP TO ABOUT 160*C. AN 1-AMINO-2-IMINOISOINDOLENINE OF THE GENERAL 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) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |