US3314959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intermediates for the synthesis of ergot alkaloids
Assignee: Sandoz AG
•
Filing: 1965-07-26
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Granted: 1967-04-18
•
Expires: 1985-07-26
Abstract
No abstract record available.
Inventors
- 👤 Hofmann Albert
- 👤 Frey Albert
- 👤 Ott Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:34
CPC Classifications
C; C07; C07K; C07K5/00; C07K5/04; C07K5/06; C07K5/06139; C07K5/06165; C07D; C07D519/00; C07D519/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULD,
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULD,
References Cited (Backward Citations)
US3084164A
Cited
US3227719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |