Patent US3273759A successfully refreshed from Google Patents.
US3273759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bin and chain feed system
Assignee: Big Dutchman Inc
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Filing: 1964-04-29
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Granted: 1966-09-20
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Expires: 1984-04-29
Abstract
No abstract record available.
Inventors
- 👤 Preston D Rigterink
- 👤 Richard A Haggard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:11
CPC Classifications
A; A01; A01K; A01K5/00; A01K5/02; A01K5/0208
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A FEED HOPPER MECHANISM FOR AN ANIMAL FEED SYSTEM, COMPRISING: A WALLED VESSEL FORMING A HOPPER HAVING A BOTTOM DISCHARGE OUTLET; A BOOT STRUCTURE ON THE BOTTOM OF SAID HOPPER, HAVING CONVERGENT WALLS EXTENDING DOWNWARDLY FROM SAID HOPPER OUTLET TO DIRECT FEED THEREFROM INTO A CONVEYOR MEANS POSITIONED IMMEDIATELY BENEATH THE SAID BOOT; AN ELONGATED FLEXIBLE PANEL HAVING A FREE LENGTH EXTENDING DOWNWARDLY INTO SAID BOOT AND TERMINATING NEAR THE LOWER END THEREOF AND DIRECTLY ABOVE SAID CONVEYOR MEANS; VIBRATOR MEANS ON THE EXTERIOR OF
Claim 2
Dependent Claim
85 words
A FEED HOPPER MECHANISM FOR AN ANIMAL FEED SYSTEM, COMPRISING: A WALLED VESSEL FORMING A HOPPER HAVING A BOTTOM DISCHARGE OUTLET; A BOOT STRUCTURE ON THE BOTTOM OF SAID HOPPER, HAVING CONVERGENT WALLS EXTENDING DOWNWARDLY FROM SAID HOPPER OUTLET TO DIRECT FEED THEREFROM INTO A CONVEYOR MEANS POSITIONED IMMEDIATELY BENEATH THE SAID BOOT; AN ELONGATED FLEXIBLE PANEL HAVING A FREE LENGTH EXTENDING DOWNWARDLY INTO SAID BOOT AND TERMINATING NEAR THE LOWER END THEREOF AND DIRECTLY ABOVE SAID CONVEYOR MEANS; VIBRATOR MEANS ON THE EXTERIOR OF
References Cited (Backward Citations)
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Cited
US1090120A
Cited
US2187376A
Cited
US2633133A
Cited
US2738765A
Cited
US2740561A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |