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

Patent Owner(s)

Patent Owner	Address
TRUTH HARDWARE CORPORATION	700 WEST BRIDGE ST OWATONNA MN 55060

International Classification(s)

• Non-US Classification not provided for expired patents

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Root, Marvin G	Owatonna, MN	2	42
# of filed Patents : 2 Total Citations : 42
Wobschall, Greg R	Owatonna, MN	2	42
# of filed Patents : 2 Total Citations : 42

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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: 7424506

Architecture and related methods for efficiently performing complex arithmetic

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Abstract

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A method is presented comprising analyzing two or more input terms on a per-bit basis within each level of bit-significance. Maximally segmenting each of the levels of bit-significance into one or more one-, two-, and/or three-bit groups, and designing a hyperpipelined hybrid Wallace tree adder utilizing one or more full-adders, half-adders, and associated register based, at least in part, on the maximal segmentation of the input terms.

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Description

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Legal Events

 

• STCH2015
• FP2015
• LAPS2015
• REMI2015
• FPAY2011
• CC2008
• I2007
• P2004
• AS2003
• F2002
• PD2001

Date	Code	Event	Description
Nov 09, 2015	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Oct 09, 2015	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Oct 09, 2015
Oct 09, 2015	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES
May 22, 2015	REMI	MAINTENANCE FEE REMINDER MAILED
Apr 01, 2011	FPAY	FEE PAYMENT	year of fee payment: 4
Mar 18, 2008	CC	CERTIFICATE OF CORRECTION
Oct 09, 2007	I	Issuance
Mar 04, 2004	P	Published
May 23, 2003	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DETJE, BERND;REEL/FRAME:014591/0439 Owner name: ERNST MUHLBAUER GMBH & CO. KG, GERMANY Effective Date: May 23, 2003
Jun 07, 2002	F	Filing
Jun 13, 2001	PD	Priority Date