US3311535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of dipyridylium compounds against fish parasites
Assignee: Chevron USA Inc
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Filing: 1963-11-15
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Granted: 1967-03-28
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Expires: 1983-11-15
Abstract
No abstract record available.
Inventors
- 👤 Arthur A Whipp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:28
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/06; C07D213/22; C07D471/00; C07D471/12; C07D471/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A METHOD OF CONTROLLING FISH DISEASES CAUSED BY BACTERIA AND PROTOZOA WHICH COMPRISES INTRODUCING INTO THE AQUEOUS ENVIROMENT OF FISH SUFFICIENT 1,1''-ETHYLENE2,2''-DIPYRIDYLIUM DIHALIDE, WHEREIN SAID HALIDE IS OF ATOMIC NUMBER 17 TO 35 TO PROVIDE A CONCENTRATION OF FROM 0.25 TO 10 P.P.M. OF CATION.
Claim 2
Independent Claim
45 words
A METHOD OF CONTROLLING FISH DISEASES CAUSED BY BACTERIA AND PROTOZOA WHICH COMPRISES INTRODUCING INTO THE AQUEOUS ENVIROMENT OF FISH SUFFICIENT 1,1''-ETHYLENE2,2''-DIPYRIDYLIUM DIHALIDE, WHEREIN SAID HALIDE IS OF ATOMIC NUMBER 17 TO 35 TO PROVIDE A CONCENTRATION OF FROM 0.25 TO 10 P.P.M. OF CATION.
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) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |