US Patent No: 7,722,735
Number of patents in Portfolio can not be more than 2000
Microstructure applique and method for making same
Stats
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May 25, 2010
Issued date -
Apr 6, 2007
filing date -
11/784,249
serial no -
In Force
status
Importance
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Abstract
A method is described for forming a porous coating on the surface of a substrate such as an implantable prosthesis wherein a microstructure appliqué is made in the shape and depth of the area to be coated, adhesively attached to that area and subsequently bonded to the substrate through the application of an appropriate sintering treatment. Manufacture of the microstructure appliqué is accomplished through the transfer and deposition of one or more packed layers of uniformly-sized, metallic particles onto a shaped pattern followed by the addition of a binder solution for preserving the packing of particles and the integrity of the shaped piece. The method disclosed herein provides a means of making uniform and reproducible structures possessing uniform porosity and is adaptable to automation for producing larger quantities of appliqués, which may help in reducing costs associated with prosthetic implant production.
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First Claim
Related Publications
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International Classification(s)
Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,536,894 Hip prosthesis with flared porous bony ingrowth pads | 65 | 1983 | |
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| 4,693,864 Powder metallurgy process for producing steel articles | 14 | 1985 | |
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| 6,087,024 Method for forming porous sintered bodies with controlled pore structure | 14 | 1996 | |
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| 4,793,968 Surface modified powder metal parts and methods for making same | 33 | 1984 | |
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| 4,550,448 Bone prosthesis with porous coating | 51 | 1985 | |
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| 6,663,688 Sintered material of spheroidal sintered particles and process for producing thereof | 21 | 2002 | |
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| 6,840,978 Porous metal article, metal composite material using the article and method for production thereof | 1 | 2003 | |
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| 2007/0243,312 Microstructure applique and method for making same | 5 | 2007 | |
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| 7,014,712 Production apparatus for a monolayer powder film on a base material in a shape of an elongated film | 1 | 2003 | |
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| 7,241,415 Metallic parts fabrication using selective inhibition of sintering (SIS) | 2 | 2003 | |
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| 2005/0149,170 Implantable device for promoting repair of a body lumen | 55 | 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 25, 2013 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 25, 2017 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 25, 2021 |
| 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 |