Shale shaker with stair-stepped arrangements of screens and methods of using same, and methods of retrofitting shale shakers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 14, 2020
Grant Date -
Nov 3, 2016
app pub date -
May 3, 2015
filing date -
May 3, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
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Abstract
A shale shaker that includes a base, a basket, a vibrator interconnected with the basket, and two shaker screens releasably mounted on the basket, with the first shaker screen having a discharge end, with the second screen having a first end with a seal abutted thereto, with the second screen positioned such that the seal is positioned below the first shaker screen, and positioned so that discharge from the first screen will not discharge onto the seal.
First Claim
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International Classification(s)
- 2015 Application Filing Year
- E21B Class
- 4392 Applications Filed
- 3453 Patents Issued To-Date
- 78.63 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 6 Citation Count
- E21B Class
- 31.25 % this patent is cited more than
- 5 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jan 14, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 14, 2032 |
