Rock drilling unit and method for charging drilled holes
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United States of America Patent
Stats
-
Apr 23, 2024
Grant Date -
Jan 5, 2023
app pub date -
Nov 18, 2020
filing date -
Nov 18, 2020
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A rock drilling unit and method for charging drilled holes. The rock drilling unit includes a feed system for feeding initiators and rock breaking material into the drilled holes. The rock drilling unit is also provided with one or more communicating devices for communicating with the wireless initiators.
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International Classification(s)
- 2020 Application Filing Year
- F42D Class
- 101 Applications Filed
- 68 Patents Issued To-Date
- 67.33 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F42D Class
- 0 % this patent is cited more than
- 1 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Oct 23, 2027 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 23, 2031 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 23, 2035 |
