Mine stopping panel with end caps and louver connections
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 20, 2016
Grant Date -
Feb 27, 2014
app pub date -
Aug 19, 2013
filing date -
Aug 24, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
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Abstract
A mine stopping panel is disclosed. The panel includes first and second channel-shaped panel members having a telescoping sliding fit one inside the other. An end cap is fitted in the first panel member. One or more louver connections between the first panel member and the end cap hold the end cap against movement relative to the first panel member when an extending force is applied to the end cap tending to telescopically extend the first panel member relative to the second panel member.
First Claim
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International Classification(s)
- 2013 Application Filing Year
- E21F Class
- 44 Applications Filed
- 39 Patents Issued To-Date
- 88.64 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- E21F Class
- 20.83 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 20, 2028 |
