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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
ARCHROMA (SWITZERLAND) GMBH	HARDSTRASSE 1 4133 PRATTELN 4133

International Classification(s)

• C14C:CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g....
• D06P:DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS,....
• C09B:ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PROD....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Cassingham, Darryl Miles	Dorset, GB	9	124
Roentgen, Georg	Freiburg, DE	38	43
Tzikas, Athanassios	Dornach, CH	139	535

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Jul 7, 2028
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jul 7, 2032

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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

US Patent Application No: 2021/0002,735

Process for the Simultaneous Tanning and Dyeing of Collagen Containing Fibrous Material

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