
US Patent No: 6,407,516
Number of patents in Portfolio can not be more than 2000
Free space electron switch
Stats
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Jun 18, 2002
Issued date -
Dec 6, 2000
filing date -
09/731,216
serial no -
In Force
status
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Abstract
A free space electron switch is disclosed. The switch, which is useful in high speed telecommunications traffic, has an array of cathodes for emitting free space electrons. A grid of aiming anodes and, a focusing grid for forming electrons from the cathode into an electron beam are provided. A plurality of output ports for receiving the electron beam from each cathode is provided, the output ports having a phosphor coating facing the side of the channel remote from the cathode.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
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Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 18, 2013 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| 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 |