US3157403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agricultural implements
Assignee: C Van der Lely NV
•
Filing: 1961-08-08
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Granted: 1964-11-17
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Expires: 1981-08-08
Abstract
No abstract record available.
Inventors
- 👤 Lely Ary Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:48
CPC Classifications
A; A01; A01C; A01C17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN AN AGRICULTURAL IMPLEMENT HAVING A HOPPER AND A ROTATABLE SPREADER FOR RECEIVING MATERIAL FROM THE LOWER END OF SAID HOPPER, THE COMBINATION OF CONTROL MEANS LOCATED BETWEEN SAID HOPPER AND SAID SPREADER FOR REGULATING THE FLOW OF MATERIAL TO SAID SPREADER, SAID CONTROL MEANS INCLUDING A MEMBER HAVING AT LEAST ONE OUTLET PORT AND MOVABLE MASKING MEANS FOR COVERING SAID PORT, ADJUSTING MEANS FOR POSITIONING SAID MASKING MEANS RELATIVE TO SAID PORT, SAID ADJUSTING MEANS INCLUDING A TURNABLE ARM CONNECTED TO SAID MASKING MEANS, A RELATIVELY STATIONARY ARM PROVIDED WITH A PIN AND SPRING-MOUNTED STOP MEANS ASSOCIATED WITH SAID TURNABLE ARM FOR ENGAGING SAID PIN AND BIASING SAID TURNABLE ARM IN A DIRECTION WHEREBY SAID MASKING MEANS IS POSITIONED RELATIVE TO SAID PORT.
Claim 2
Dependent Claim
124 words
IN AN AGRICULTURAL IMPLEMENT HAVING A HOPPER AND A ROTATABLE SPREADER FOR RECEIVING MATERIAL FROM THE LOWER END OF SAID HOPPER, THE COMBINATION OF CONTROL MEANS LOCATED BETWEEN SAID HOPPER AND SAID SPREADER FOR REGULATING THE FLOW OF MATERIAL TO SAID SPREADER, SAID CONTROL MEANS INCLUDING A MEMBER HAVING AT LEAST ONE OUTLET PORT AND MOVABLE MASKING MEANS FOR COVERING SAID PORT, ADJUSTING MEANS FOR POSITIONING SAID MASKING MEANS RELATIVE TO SAID PORT, SAID ADJUSTING MEANS INCLUDING A TURNABLE ARM CONNECTED TO SAID MASKING MEANS, A RELATIVELY STATIONARY ARM PROVIDED WITH A PIN AND SPRING-MOUNTED STOP MEANS ASSOCIATED WITH SAID TURNABLE ARM FOR ENGAGING SAID PIN AND BIASING SAID TURNABLE ARM IN A DIRECTION WHEREBY SAID MASKING MEANS IS POSITIONED RELATIVE TO SAID PORT.
References Cited (Backward Citations)
US391861A
Cited
US894948A
Cited
US966564A
Cited
US2535414A
Cited
US2550872A
Cited
US2687307A
Cited
US2901257A
Cited
US3060872A
Cited
US2953999A
Cited
US2968264A
Cited
US3025068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |