US3551419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amino acid amides and process for their production
Assignee: Rottapharm SpA
•
Filing: 1965-07-23
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Granted: 1970-12-29
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Expires: 1985-07-23
Abstract
No abstract record available.
Inventors
- 👤 Giorgio Da Re
- 👤 Luigi Rovati
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:56
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/48; C07C; C07C233/00; C07C233/01; C07C233/12; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D231/44; C07D231/46; C07D231/50; C07D295/00; C07D295/16; C07D295/18; C07D295/182; C07D295/185; C07D309/00; C07D309/32
Claims Analysis
Total Claims: 0
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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) | 1973-12-28 | 1974-06-29 | 1974-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-28 | 1978-06-29 | 1978-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-28 | 1982-06-29 | 1982-12-29 | $7700.00 | Window Closed / Lapsed |