Hatch cover for a railroad hopper car
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Dec 7, 2004
Grant Date -
Sep 30, 2004
app pub date -
Mar 26, 2003
filing date -
Mar 26, 2003
priority date (Note) -
Expired
status (Latency Note)
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Importance

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Forward Citations
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Abstract
A hatch cover adapted to be positioned over and close a hatch opening on a railroad hopper car. The hatch cover includes a rigid panel sized to cover the hopper car hatch opening. The panel for the hatch cover includes an inner skin, an outer skin, and a core material sandwiched between and adhered to the inner and outer skins. Edge structure is secured to the panel for protecting edges of the panel.
First Claim
all claims..Other Claims data not available
Family
- No Family data available.
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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MINER ENTERPRISES INC | 1200 EAST STATE STREET P O BOX 471 GENEVA IL 60134 |
International Classification(s)

- 2003 Application Filing Year
- B61D Class
- 115 Applications Filed
- 30 Patents Issued To-Date
- 26.09 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Gaydos, Christopher C | Maple Park, IL | 15 | 149 |
# of filed Patents : 15 Total Citations : 149 | |||
Palermo, Michael R | Bartlett, IL | 2 | 25 |
# of filed Patents : 2 Total Citations : 25 |
Cited Art Landscape
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Patent Citation Ranking
- 8 Citation Count
- B61D Class
- 4.76 % this patent is cited more than
- 21 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 |
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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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