Hopper car gate with enlarged discharge and increased capacity
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jul 13, 2010
Grant Date -
Apr 9, 2009
app pub date -
Oct 4, 2007
filing date -
Oct 4, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A hopper car having an increased volume. The car has side walls, end walls, a bottom, and first and second sloping surfaces. The bottom lies at least partially in a horizontal plane and includes a plurality of spaced apart openings. The side walls, end walls, and horizontal plane define a volume X. The first and second sloping surfaces are located between adjacent openings and joined to the bottom adjacent the openings. The sloping surfaces extend upwardly from the bottom to present an inverted V enclosing a volume Y. The volume Y is no more than approximately 1 to 5% of the volume X.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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AERO TRANSPORTATION PRODUCTS INC | 3300 E GEOSPACE DRIVE INDEPENDENCE MO 64051 |
International Classification(s)

- 2007 Application Filing Year
- B61D Class
- 76 Applications Filed
- 35 Patents Issued To-Date
- 46.06 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Early, Stephen R | Olathe, US | 29 | 393 |
# of filed Patents : 29 Total Citations : 393 |
Cited Art Landscape
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Patent Citation Ranking
- 8 Citation Count
- B61D Class
- 5.66 % this patent is cited more than
- 15 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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