Patent US3271246A successfully refreshed from Google Patents.
US3271246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of controlling sea lamprey
Assignee: Individual
•
Filing: 1964-01-06
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Granted: 1966-09-06
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Expires: 1984-01-06
Abstract
No abstract record available.
Inventors
- 👤 John H Howell
- 👤 Jr Everett L King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:22
CPC Classifications
A; A01; A01N; A01N37/00; A01N37/36; A01N37/38; A01N37/40; Y; Y10; Y10S; Y10S424/00; Y10S424/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A METHOD FOR CONTROLLING PETROMYZON MARINUS LAMPREY COMPRISING ESTABLISHING, IN COLD WATER AQUATIC ENVIRONMENTS TRIBUTARY TO THE GREAT LAKES OF NORTH AMERICA CONTAINING THE PETROMYZON MARINUS LARVAE AND HABITABLE BY FRESH WATER TROUT, A CONCENTRATION OF AT LEAST ABOUT 0.07 PART PER MILLION OF A WATER DISPERSIBLE LAMPRECIDAL COMPOSITION THAT IS LETHAL TO THE LARVAE WITHOUT MORE THAN TWENTY-FIVE PERCENT TROUT MORTALITY, SAID LAMPRECIDAL COMPOSITION COMPRISING 2'',5-DICHLORO-4''-NITROSALICYLANILIDE.
Claim 2
Independent Claim
67 words
A METHOD FOR CONTROLLING PETROMYZON MARINUS LAMPREY COMPRISING ESTABLISHING, IN COLD WATER AQUATIC ENVIRONMENTS TRIBUTARY TO THE GREAT LAKES OF NORTH AMERICA CONTAINING THE PETROMYZON MARINUS LARVAE AND HABITABLE BY FRESH WATER TROUT, A CONCENTRATION OF AT LEAST ABOUT 0.07 PART PER MILLION OF A WATER DISPERSIBLE LAMPRECIDAL COMPOSITION THAT IS LETHAL TO THE LARVAE WITHOUT MORE THAN TWENTY-FIVE PERCENT TROUT MORTALITY, SAID LAMPRECIDAL COMPOSITION COMPRISING 2'',5-DICHLORO-4''-NITROSALICYLANILIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |