US2868692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anthelmintic polymethylenepiperazine and method of using same
Assignee: Wyeth Holdings LLC
•
Filing: 1956-05-16
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Granted: 1959-01-13
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Expires: 1976-05-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Frederick L Bach
- 👤 Redginal I Hewitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:01
CPC Classifications
A; A61; A61K; A61K31/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A THERAPEUTIC COMPOSITION USEFUL IN THE TREATMENT OF HELMINTHS IN DOSAGE UNIT FORM COMPRISING FROM 0.1 G. TO 10.00 G. OF A POLYMETHYLENEPIPERAZINE OF THE FOLLOWING UNIT STRUCTURE
Claim 2
Dependent Claim
28 words
A THERAPEUTIC COMPOSITION USEFUL IN THE TREATMENT OF HELMINTHS IN DOSAGE UNIT FORM COMPRISING FROM 0.1 G. TO 10.00 G. OF A POLYMETHYLENEPIPERAZINE OF THE FOLLOWING UNIT STRUCTURE
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) | 1962-01-12 | 1962-07-14 | 1963-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-12 | 1966-07-14 | 1967-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-12 | 1970-07-14 | 1971-01-13 | $7700.00 | Window Closed / Lapsed |