Mine roof support crib having only two or three planes, and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Mar 5, 2002
Grant Date -
N/A
app pub date -
Oct 8, 1999
filing date -
Oct 8, 1999
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A mine roof support crib. The crib includes a plurality of chocks that are connected together through notches in the chocks to form only three planes with at least two of the planes in perpendicular relation with each other and able to support at least five tons of load. Alternatively, the plurality of chocks that are connected together through notches in the chocks form only two planes which are in perpendicular relation with each other and are able to support at least five tons of load. A mine roof support crib. The crib includes a plurality of chocks that are connected together through notches in the chocks to be able to support at least five tons of load. The plurality of chocks comprises a first type of chock having only one notch on a first side and a second type of chock having at least one notch on a second side. The plurality of chocks is connected together. A method of forming a mine roof support crib.
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 | |
---|---|---|
STRATA PRODUCTS WORLDWIDE LLC | 8995 ROSWELL ROAD SUITE 200 SANDY SPRINGS GA 30350 | |
STRATA SAFETY PRODUCTS LLC | 8995 ROSWELL ROAD SUITE 200 SANDY SPRINGS GA 30350 | |
STRATA MINE SERVICES LLC | 8995 ROSWELL ROAD SUITE 200 SANDY SPRINGS GA 30350 |
International Classification(s)

- 1999 Application Filing Year
- E04B Class
- 482 Applications Filed
- 189 Patents Issued To-Date
- 39.22 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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McCartney, Clifford A | Eighty-Four, PA | 10 | 46 |
# of filed Patents : 10 Total Citations : 46 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 3 Citation Count
- E04B Class
- 2.33 % this patent is cited more than
- 23 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 |
Full Text

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Aug 04, 1997 | F | Filing | |
Aug 04, 1997 | PD | Priority Date |

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