Family

Loading Family data...

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

Patent Owner(s)

Patent Owner	Address
CURBTENDER SWEEPERS LLC	701 PERFORMANCE DRIVE CEDAR FALLS IA 50613

International Classification(s)

• E01H:STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEAN....
• A47L:DOMESTIC WASHING OR CLEANING
• F04D:NON-POSITIVE-DISPLACEMENT PUMPS

• 2020 Application Filing Year
• E01H Class
• 147 Applications Filed
• 93 Patents Issued To-Date
• 63.27 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
ANAND, ADITYA G	Waterloo, US	3	0
# of filed Patents : 3 Total Citations : 0
BAUGHMAN, AARON T	Cedar Falls, US	3	0
# of filed Patents : 3 Total Citations : 0
WRIGHT, CLAYTON D	Des Moines, US	3	0
# of filed Patents : 3 Total Citations : 0

Cited Art Landscape

Load Citation

• No Cited Art to Display

Loading Cited Art Landscape...

Patent Citation Ranking

• 0 Citation Count
• E01H Class

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

Forward Cite Landscape

Load Citation

• No Forward Cites to Display

Loading Forward Cite Landscape...

Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
3.5 Year Payment	$1600.00	$800.00	$400.00	Sep 17, 2025
7.5 Year Payment	$3600.00	$1800.00	$900.00	Sep 17, 2029
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Sep 17, 2033

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 3.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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 No: 7883577

Rheology stabilizer for cementitious compositions

---

Abstract

---

An admixture formulation of at least one polycarboxylate dispersant and at least one naphthalene dispersant is provided. When the polycarboxylate dispersant and the naphthalene dispersant of the admixture formulation are combined at various ratios the admixture formulation reduces the tendency for bleed and segregation in cementitious mixtures without increasing water demand, retarding setting, increasing water sensitivity, promoting high viscosity, or reducing flow retention.

---

 

---

Description

---

Claims

---

Claims data not available

---

Legal Events

 

• AS2023
• MAFP2022
• MAFP2018
• FPAY2014
• I2011
• STCF2011
• P2010
• F2010
• AS2003
• PD2003

Date	Code	Event	Description
Jun 25, 2023	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CONSTRUCTION RESEARCH & TECHNOLOGY GMBH;REEL/FRAME:064640/0880 Owner name: SIKA TECHNOLOGY AG, SWITZERLAND Effective Date: Jun 25, 2023
Jul 27, 2022	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 12TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1553); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 12
Jul 30, 2018	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552) year of fee payment: 8
Aug 06, 2014	FPAY	FEE PAYMENT	year of fee payment: 4
Feb 08, 2011	I	Issuance
Jan 19, 2011	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Aug 05, 2010	P	Published
Apr 07, 2010	F	Filing
Nov 07, 2003	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SPROUTS, SANDRA R.;GOODWIN, FREDERICK R.;DAL BO, ALESSANDRO;SIGNING DATES FROM 20030515 TO 20030527;REEL/FRAME:027539/0179 Owner name: MBT HOLDING AG, SWITZERLAND free format text: NUNC PRO TUNC ASSIGNMENT;ASSIGNOR:DEGUSSA CONSTRUCTION CHEMICALS (EUROPE) AG, FORMERLY KNOWN AS MBT HOLDING AG;REEL/FRAME:027539/0237 Owner name: CONSTRUCTION RESEARCH & TECHNOLOGY GMBH, GERMANY Effective Date: Nov 07, 2003
Apr 25, 2003	PD	Priority Date