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

Patent Owner(s)

Patent Owner	Address
DIDECO S R L A CORPORATION OF ITALY	VIA STATALE 12 NORD 86 MIRANDOLA (MO) 41037

International Classification(s)

• F04B:POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS

• 1989 Application Filing Year
• F04B Class
• 395 Applications Filed
• 1 Patents Issued To-Date
• 0.26 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Calari, Alessandro	Via Trieste, 8, Mirandola (Modena	4	172
# of filed Patents : 4 Total Citations : 172

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Patent Citation Ranking

• 27 Citation Count
• F04B Class

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

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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: 5064358

Peristaltic pump adapted to operate simultaneously on two lines

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Abstract

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A peristaltic pump is described for operating simultaneously on two fluid lines having different wall thicknesses comprising a rotatable head having rollers and enclosed within a hollow body. The hollow body has a central axis with an internal first cylindrical surface portion at a first radius R from the axis, and a second cylindrical surface portion at a second radius r from the axis. The interspace between the periphery of the respective roller and the respective cylindrical surface portion is arranged to perfectly occlude the respective different sized fluid line.

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Description

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Claims

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Claims data not available

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Legal Events

 

• STCH2003
• LAPS2003
• FP2003
• REMI2003
• FPAY1999
• FPAY1995
• AS1992
• FEPP1991
• I1991
• FEPP1990
• F1989
• AS1989
• PD1988

Date	Code	Event	Description
Dec 10, 2003	STCH	INFORMATION ON STATUS: PATENT DISCONTINUATION	free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362
Dec 10, 2003	LAPS	LAPSE FOR FAILURE TO PAY MAINTENANCE FEES	free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Nov 12, 2003	FP	LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE	Effective Date: Nov 12, 2003
May 28, 2003	REMI	MAINTENANCE FEE REMINDER MAILED
May 03, 1999	FPAY	FEE PAYMENT	year of fee payment: 8
Apr 24, 1995	FPAY	FEE PAYMENT	year of fee payment: 4
Feb 26, 1992	AS	ASSIGNMENT	free format text: ASSIGNOR ASSIGNS ENTIRE INTEREST AS OF 2/28/92.;ASSIGNOR:ROERIG FARMACEUTICI ITALIANA S.R.L. A CORPORATION OF ITALY;REEL/FRAME:006101/0225 Owner name: DIDECO S.R.L., A CORPORATION OF ITALY, ITALY Effective Date: Feb 26, 1992
Dec 06, 1991	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Nov 12, 1991	I	Issuance
Nov 01, 1990	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Jun 13, 1989	F	Filing
Jun 01, 1989	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CALARI, ALESSANDRO;REEL/FRAME:005089/0868 Owner name: DIDECO S.P.A., ITALY Effective Date: Jun 01, 1989
Jun 14, 1988	PD	Priority Date