Process for producing leather
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 8, 2022
Grant Date -
Oct 10, 2019
app pub date -
Jun 12, 2017
filing date -
Jun 14, 2016
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention relates to a process for producing leather in which methanesulfonic acid (MSA) is used in the pickling step at a high pH value, and the use of MSA is to improve the quality of the final leather product as well as to improve the environmental impact of the waste liquor.
First Claim
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International Classification(s)
- 2017 Application Filing Year
- C14C Class
- 27 Applications Filed
- 18 Patents Issued To-Date
- 66.67 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C14C Class
- 0 % this patent is cited more than
- 3 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 | Aug 8, 2025 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 8, 2029 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 8, 2033 |