US Patent No: 6,963,844
Number of patents in Portfolio can not be more than 2000
Method for qualifying die material and testing dies
Stats
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Nov 8, 2005
Issued date -
Apr 6, 2000
filing date -
09/544,321
serial no -
Expired
status
Importance
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Abstract
A method (10) for acquiring material for use within a die and for determining whether a die has certain characteristics which would allow the die to have a relatively long operating life. The method (10) requires that a suppler of a die provide certain material which is analyzed to determine whether the supplied material has a certain toughness. If the material has the requisite toughness, a material signature is created and used to evaluate further materials and dies produced and/or provided by the supplier.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,737,581 Quality system implementation simulator | 50 | 1995 | |
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| 5,220,827 Method for testing the hardness of a dental composite material | 2 | 1991 | |
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| 6,267,011 Method and apparatus for determining the true stress and true strain behavior of a ductile polymer | 7 | 1999 | |
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| 6,140,643 Method for identification of unknown substances | 11 | 1999 | |
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| 5,737,494 Assessment methods and apparatus for an organizational process or system | 30 | 1994 | |
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| 5,463,896 Stress tester | 8 | 1993 | |
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| 5,765,138 Apparatus and method for providing interactive evaluation of potential vendors | 181 | 1995 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 8, 2013 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 8, 2017 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| 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 |