US3549663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antibacterial agents
Assignee: Pfizer Inc
•
Filing: 1966-11-22
•
Granted: 1970-12-22
•
Expires: 1986-11-22
Abstract
No abstract record available.
Inventors
- 👤 Lloyd H Conover
- 👤 James D Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:31
CPC Classifications
C; C07; C07C; C07C255/00; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07C59/76; C07C59/90; C07C59/92; C07C62/00; C07C62/30; C07C62/38; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/56; C07D307/58
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |