Refrigerator with an air filter/freshener system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Oct 13, 2009
Grant Date -
Jan 24, 2008
app pub date -
Jul 20, 2006
filing date -
Jul 20, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A refrigerator incorporates an air filter for filtering an airflow passing along at least one refrigeration component into surrounding spaces. The air filter is positioned in an upper machine compartment which houses refrigeration components associated with maintaining temperatures in the refrigerator. At least one sensor is arranged adjacent the air filter to determine a parameter of the air flow. A control, including an air filter analyzer, determines a need for an air filter change based on the sensed parameter. In addition to removing impurities from the airflow, the air filter includes scented media which adds fragrance to the airflow.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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MAYTAG CORPORATION | 403 WEST FOURTH STREET NORTH NEWTON IA 50208 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Vestal, William James | Milan , US | 5 | 130 |
# of filed Patents : 5 Total Citations : 130 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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

Legal Events
Date | Code | Event | Description |
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Mar 28, 2022 | 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: SMALL ENTITY |
Mar 28, 2022 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Feb 20, 2022 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Feb 20, 2022 |
Oct 11, 2021 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Sep 25, 2019 | AS | ASSIGNMENT | free format text: SECURITY INTEREST;ASSIGNOR:ARROW INTERNATIONAL, INC.;REEL/FRAME:050619/0681 Owner name: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT Effective Date: Sep 25, 2019 |
Feb 20, 2018 | I | Issuance | |
Jan 31, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Feb 17, 2017 | AS | ASSIGNMENT | free format text: SECURITY INTEREST;ASSIGNOR:ARROW INTERNATIONAL, INC.;REEL/FRAME:041759/0160 Owner name: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT, ILLINOIS Effective Date: Feb 17, 2017 free format text: SECURITY INTEREST;ASSIGNOR:ARROW INTERNATIONAL, INC.;REEL/FRAME:041759/0160 Owner name: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT Effective Date: Feb 17, 2017 |
Jun 29, 2015 | AS | ASSIGNMENT | free format text: MERGER AND CHANGE OF NAME;ASSIGNORS:SEMPRUS BIOSCIENCES CORP.;ARROW INTERNATIONAL, INC.;REEL/FRAME:036231/0340 Owner name: ARROW INTERNATIONAL, INC., PENNSYLVANIA Effective Date: Jun 29, 2015 |
Dec 15, 2011 | P | Published | |
Jul 06, 2011 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SCHULTZ, KAREN A.;ZHANG, ZHENG;HUVAL, CHAD C.;AND OTHERS;SIGNING DATES FROM 20110616 TO 20110617;REEL/FRAME:026549/0363 Owner name: SEMPRUS BIOSCIENCES CORPORATION, MASSACHUSETTS |
Jun 09, 2011 | F | Filing | |
Dec 06, 2009 | PD | Priority Date |

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