US3329679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fused-ring imidazoquinazolines, pyrimidoquinazolines and related compounds
Assignee: Wyeth LLC
•
Filing: 1965-12-22
•
Granted: 1967-07-04
•
Expires: 1985-12-22
Abstract
No abstract record available.
Inventors
- 👤 Theodore S Sulkowski
- 👤 Scott J Childress
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:05
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/02; C07D487/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
12 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THOSE HAVING A FORMULA:
Claim 2
Dependent Claim
12 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THOSE HAVING A FORMULA:
Claim 3
Dependent Claim
11 words
A PROCESS FOR THE PRODUCTION OF A COMPOUND OF THE FORMULA:
Claim 4
Dependent Claim
11 words
A PROCESS FOR THE PRODUCTION OF A COMPOUND OF THE 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) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |