US2850426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anthelmintic piperazine-phosphoric acid compositions and method of combatting helminth infestations therewith
Assignee: Chemo Puro Manuf Corp
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Filing: 1955-03-16
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Granted: 1958-09-02
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Expires: 1975-03-16
Abstract
No abstract record available.
Inventors
- 👤 Peter C Hereld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:53
CPC Classifications
C; C07; C07D; C07D401/00; C07D401/02; C07D401/12; A; A23; A23K; A23K50/00; A23K50/30; A23K50/70; A23K50/75; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/495
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
AN ANIMAL FEED COMPOSITION CONTAINING AS AN ESSENTIAL ACTIVE INGREDIENT THEREOF THE ANTHELMINTIC ADDITION PRODUCT OF EQUI-MOLECULAR QUANTITIES OF PIPERAZINE AND PHOSPHORIC ACID.
Claim 2
Dependent Claim
23 words
AN ANIMAL FEED COMPOSITION CONTAINING AS AN ESSENTIAL ACTIVE INGREDIENT THEREOF THE ANTHELMINTIC ADDITION PRODUCT OF EQUI-MOLECULAR QUANTITIES OF PIPERAZINE AND PHOSPHORIC ACID.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |