Patent US2902402A successfully refreshed from Google Patents.
US2902402A
Expired / Lapsed
US
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Thioamine anthelmintic agents
Assignee: Pfizer Inc
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Filing: 1956-11-27
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Granted: 1959-09-01
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Expires: 1976-11-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Lambrech
- 👤 William H Hensley
- 👤 Robert E Kent
- 👤 John E Lynch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:33
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/72; C07D213/76; C07D215/00; C07D215/02; C07D215/16; C07D215/38; C07D295/00; C07D295/22; C07D295/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
A PROCESS FOR TREATING HELMINTHIC INFESTATIONS OF DOMESTIC ANIMALS COMPRISING INTESTINAL CONTACT OF SAID HELIMINTHS WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF N,N''-THIOAMINES AND N,N''-POLYTHIOAMINES OF THE FORMULA:
Claim 2
Dependent Claim
30 words
A PROCESS FOR TREATING HELMINTHIC INFESTATIONS OF DOMESTIC ANIMALS COMPRISING INTESTINAL CONTACT OF SAID HELIMINTHS WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF N,N''-THIOAMINES AND N,N''-POLYTHIOAMINES OF THE FORMULA:
References Cited (Backward Citations)
US2766236A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |