US Patent No: 6,917,124
Number of patents in Portfolio can not be more than 2000
Uninterruptible power supply
Stats
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Jul 12, 2005
Issued date -
Oct 26, 2001
filing date -
10/007,273
serial no -
In Force
status
Importance
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Abstract
An uninterruptible power supply is disclosed that includes a digital controller comprising a plurality of microprocessors. These microprocessors are programmed and arranged to provide various control features heretofore unavailable using analog controllers of the prior art.
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First Claim
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International Classification(s)
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- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 6,274,950 Battery communication system | 51 | 1994 | |
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| 5,920,189 Auto ranging current monitor with common mode correction | 4 | 1996 | |
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 | Jan 12, 2013 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 12, 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 |