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

Patent Owner(s)

Patent Owner	Address
DURO DYNE CORPORATION	130 ROUTE 110 FARMINGDALE NY 11735

International Classification(s)

• B21D:WORKING OR PROCESSING OF SHEET METAL OR METAL TUBE....

• 2019 Application Filing Year
• B21D Class
• 770 Applications Filed
• 530 Patents Issued To-Date
• 68.84 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Aghabekian, Steve	Farmingville, US	1	0
# of filed Patents : 1 Total Citations : 0
Bellise, Andrew J	Farmingdale, US	8	3
# of filed Patents : 8 Total Citations : 3
Krupnick, David B	Mattituck, US	8	3
# of filed Patents : 8 Total Citations : 3

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Patent Citation Ranking

• 0 Citation Count
• B21D Class

• 0 % this patent is cited more than
• 5 Age

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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	Jan 23, 2028
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jan 23, 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: 2020/0230,685

PITTSBURGH HAND TOOL

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Abstract

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Disclosed is a tool useful for fabricating sheet metal ductwork, the tool comprises a handle portion extending from an end of which are first and second prongs, the first prong extending from and in substantially the same plane as the handle portion, the second prong extending outwardly from the handle at a obtuse angle and spaced apart and opposite from the first prong; the second prong having an arcuate tip end that is curved radially at an acute angle toward the direction of the first prong but extending just beyond it.

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Description

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Claims

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