US3364227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymethylenepyrazoles
Assignee: GD Searle LLC
•
Filing: 1965-10-21
•
Granted: 1968-01-16
•
Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Richard A Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:07
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS HAVING STRUCTURAL FORMULAS A AND B
Claim 2
Dependent Claim
15 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS HAVING STRUCTURAL FORMULAS A AND B
References Cited (Backward Citations)
US2725384A
Cited
US2931814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |