US2904591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alpha-alkyl-propiophenones
Assignee: Pharmacia Animal Health Inc
•
Filing: 1956-02-20
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Granted: 1959-09-15
•
Expires: 1976-02-20
Abstract
No abstract record available.
Inventors
- 👤 Hanell Erik Sixten
- 👤 Sundbeck Bertil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:37
CPC Classifications
C; C07; C07D; C07D317/00; C07D317/08; C07D317/44; C07D317/46; C07D317/48; C07D317/50; C07D317/58; C07C; C07C221/00; C07C225/00; C07C225/02; C07C225/14; C07C225/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A MEMBER OF THE GROUP OF BASIC KETONES HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
12 words
A MEMBER OF THE GROUP OF BASIC KETONES HAVING 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) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |