Temperature-controlled railroad freight car
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Apr 30, 2009
app pub date -
May 13, 2004
filing date -
May 13, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Importance

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Abstract
A temperature controlled railroad freight car (20) including an air flow conduit (98) and a related plenum (52) for distributing conditioned air from a refrigeration and heating unit (64) on an end wall (44) of the freight car (20), and a floor structure (40) that contributes to temperature control in a cargo space within the car (20). A diverter directs a flow of air upward into an inlet end of the plenum (52) and allows the flow to expand gradually within the plenum (52), smoothing the flow of air as it enters the plenum (52) so that it continues effectively at sufficient rates over the length of the car (20). The car (20) may include a subfloor (38) of composite construction, supporting a floor (40) that includes several tubular metal segments through which air can flow longitudinally of the car (20).
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
GUNDERSON LLC | 4350 NORTHWEST FRONT AVENUE PORTLAND OR 97210 |
International Classification(s)

- 2004 Application Filing Year
- B61D Class
- 130 Applications Filed
- 39 Patents Issued To-Date
- 30 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Becker, Bruce D | Vancouver, US | 4 | 27 |
# of filed Patents : 4 Total Citations : 27 | |||
Jarvis, James J | Portland, US | 5 | 91 |
# of filed Patents : 5 Total Citations : 91 |
Cited Art Landscape
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Patent Citation Ranking
- 1 Citation Count
- B61D Class
- 1.67 % this patent is cited more than
- 16 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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 |
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