US Patent No: 8,181,711
Number of patents in Portfolio can not be more than 2000
Tiller
Stats
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May 22, 2012
Issued date -
Sep 8, 2010
filing date -
12/877,854
serial no -
In Force
status
Importance
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Abstract
A tiller with a removable tine rotor is provided. The tiller comprises a cavity formed by a top deck and end plates. The end plates comprise rotating spindles rotatably attached to the end plates. A gearbox translates rotation from a tractor to one of the rotating spindles. A tine rotor extends between the spindles and rotates to till soil. The tine rotor is releasably connected to the spindles within the cavity, such that the tine rotor is removable from the tiller without disassembly of the end plates.
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First Claim
Related Publications
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International Classification(s)
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- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 5,632,106 Tiller with adjustable depth cutter and snow comb entry angle | 6 | 1995 | |
| 5,581,914 Snow cutting tooth for rotating cutter bar of ski slope tiller | 10 | 1995 | |
| 5,809,671 Tiller with adjustable depth cutter and snow comb entry angle | 11 | 1997 | |
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| 4,775,014 Ground-working implement | 6 | 1986 | |
| 4,892,154 Ground-working apparatus with rotary tiller | 9 | 1988 | |
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| 5,765,646 Combined control machine for an orchard | 2 | 1996 | |
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| 4,402,366 Soil tilling machine | 19 | 1980 | |
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| 7,021,393 Landscape tiller | 2 | 2003 | |
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| 6,497,294 Soil conditioner implement | 6 | 2000 | |
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| 4,512,414 Rotary tiller | 12 | 1984 | |
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| 5,261,218 Powered rake having debris windrowing mechanism | 8 | 1992 | |
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| 4,421,177 End drive rotary cultivator | 6 | 1981 | |
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| 5,520,253 Custom assembled equipment for landscaping | 33 | 1995 | |
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| 6,467,550 Hydraulic tiller assembly | 5 | 2000 | |
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| D364174 Rock collecting implement | 3 | 1993 | |
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| 5,232,054 Front folding no-till drill | 36 | 1991 | |
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| 4,396,067 Tiller with rotatable tines and guiding handle | 15 | 1980 | |
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| 4,878,713 Pavement planing machine | 45 | 1988 | |
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| D258592 Earth working implement | 3 | 1978 | |
| 4,761,038 Surface working accessory | 8 | 1983 | |
| 4,620,599 Ground working machine for hoeing, tilling and the like | 9 | 1983 | |
| 5,101,911 Rotor tiller having counter-rotating twin shafts | 10 | 1991 | |
| D388440 Self-loading material spreader | 11 | 1996 | |
| 2006/0243,463 Rotatable implement with end-mounted motor | 3 | 2005 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Nov 22, 2015 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 22, 2019 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 22, 2023 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |