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

Patent Owner(s)

• STETHTECH CORPORATION

International Classification(s)

• 2402:MEDICAL INSTRUMENTS, INSTRUMENTS AND TOOLS FOR LAB....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Grasfield, James A	235 Moose Hill Pwky., Sharon, MA 02067	17	362
Stark, Peter R H	41 Bonad Rd., Stoneham, MA 02180	14	529
Steinhubel, Daniela	41 Bonad Rd., Stoneham, MA 02180	10	304
Winston, David E	7 Wainwright Rd. #15, Winchester, MA 01890	13	372

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
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 No: D389576

Stethoscope

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