US3096600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fish sorting method
Assignee: Individual
•
Filing: 1960-10-13
•
Granted: 1963-07-09
•
Expires: 1980-10-13
Abstract
No abstract record available.
Inventors
- 👤 Val M Gwyther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:27
CPC Classifications
A; A01; A01K; A01K61/00; A01K61/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
THE METHOD OF REMOVING ALL FISH EXCEPT A DESIRED SPECIES FROM A RIVER DURING MIGRATION UPSTREAM PAST AN OBSTRUCTION WHICH METHOD COMPRISES: GUIDING THE FISH FROM THE DOWNSTREAM SIDE OF THE OBSTRUCTION INTO A WATER-FILLED STRUCTURE, MOVING A FIRST SCREEN ALONG THE STRUCTURE TOWARDS A SECOND SCREEN TO REDUCE THE VOLUME OF WATER CONTAINING THE FISH, TO SEPARATE SOME OF THE FISH BELOW A PREDETERMINED SIZE FROM THE REMAINDER OF THE FISH AND TO COLLECT THE REMAINDER OF THE FISH ABOVE A LIFTING TRAY, RAISING THE LIFTING TRAY UNTIL THE FISH THEREIN ARE ACCESSIBLE FROM THE EXTERIOR OF THE STRUCTURE, HAND SELECTING THE DESIRED SPECIES FROM THE IN THE LIFTING TRAY FOR TRANSFER TO ANOTHER PART OF THE STRUCTURE AND TRANSPORTING THE DESIRED SPECIES IN THE OTHER PART OF THE STRUCTURE BACK TO THE RIVER ON THE UPSTREAM SIDE OF THE OBSTRUCTION.
Claim 2
Independent Claim
142 words
THE METHOD OF REMOVING ALL FISH EXCEPT A DESIRED SPECIES FROM A RIVER DURING MIGRATION UPSTREAM PAST AN OBSTRUCTION WHICH METHOD COMPRISES: GUIDING THE FISH FROM THE DOWNSTREAM SIDE OF THE OBSTRUCTION INTO A WATER-FILLED STRUCTURE, MOVING A FIRST SCREEN ALONG THE STRUCTURE TOWARDS A SECOND SCREEN TO REDUCE THE VOLUME OF WATER CONTAINING THE FISH, TO SEPARATE SOME OF THE FISH BELOW A PREDETERMINED SIZE FROM THE REMAINDER OF THE FISH AND TO COLLECT THE REMAINDER OF THE FISH ABOVE A LIFTING TRAY, RAISING THE LIFTING TRAY UNTIL THE FISH THEREIN ARE ACCESSIBLE FROM THE EXTERIOR OF THE STRUCTURE, HAND SELECTING THE DESIRED SPECIES FROM THE IN THE LIFTING TRAY FOR TRANSFER TO ANOTHER PART OF THE STRUCTURE AND TRANSPORTING THE DESIRED SPECIES IN THE OTHER PART OF THE STRUCTURE BACK TO THE RIVER ON THE UPSTREAM SIDE OF THE OBSTRUCTION.
References Cited (Backward Citations)
US769910A
Cited
US2643481A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |