US3259633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3-phenyl-2-indolecarboxaldehydes and process for their preparation
Assignee: F Hoffmann La Roche AG
•
Filing: 1963-10-31
•
Granted: 1966-07-05
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Expires: 1983-10-31
Abstract
No abstract record available.
Inventors
- 👤 Metlesics Werner
- 👤 Sternbach Leo Henryk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:56
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/30; C07D209/42; C07D209/10; C07D209/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
11 words
A PROCESS FOR THE PREPARATION OF A COMPOUND OF THE FORMULA
Claim 4
Dependent Claim
11 words
A PROCESS FOR THE PREPARATION OF A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US3012040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |