US Patent No: 8,186,523
Number of patents in Portfolio can not be more than 2000
Stackable rack
Stats
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May 29, 2012
Issued date -
May 13, 2008
filing date -
12/600,834
serial no -
In Force
status
Importance
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Abstract
A stackable rack includes two side supports and a shelf plate between the two side supports. The side supports comprises of at least one support unit. The support unit comprises a rectangular frame and a foot support. The rectangular frame is provided with a cross bar to support the shelf plate. The foot support is bent into trapezoid with an oblate metal ring. The two ends of the trapezoid are close and bent into horizontal foot loops. The inner distance of the horizontal foot loops is a little longer than the width of the rectangular frame. The upper side of the foot support clamps the lower side of the rectangular frame and is fixed by welding. The horizontal foot loops of the support of one support unit can fit over the upper corners of the rectangular frame of another support unit, so as to stack up.
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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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| 4,444,320 Stackable shelf unit | 31 | 1981 | |
| 5,097,971 Stackable and collapsible shelf assembly | 15 | 1991 | |
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| 4,805,785 Shelf unit | 9 | 1987 | |
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| 7,828,160 Storage rack | 2 | 2008 | |
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| 4,732,284 Free standing stacking shelf system | 42 | 1986 | |
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| 6,601,716 Stackable and rollable rack | 2 | 2002 | |
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| 7,967,155 Stackable cooling rack | 1 | 2006 | |
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| D579237 Stackable and nestable shelves with reinforced platform | 4 | 2006 | |
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| 6,318,570 Stackable and nestable racks | 17 | 1998 | |
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| 5,152,407 Stackable and nestable racks incorporating storage means | 39 | 1991 | |
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| 4,821,885 Stackable and nestable basket device | 10 | 1986 | |
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 29, 2015 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 29, 2019 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 29, 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 |