Loudspeaker system with improved sound
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 14, 2017
Issued Date -
N/A
app pub date -
Jun 3, 2015
filing date -
Aug 23, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A loudspeaker device is presented which includes a zeolite material comprising zeolite particles having a silicon to aluminum mass ratio of at least 200. For an increased pore fraction of pores with a diameter in a range between 0.7 micrometer and 30 micrometer shows an increased shift of the resonance frequency down to lower frequencies has been observed.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SSI NEW MATERIAL (ZHENJIANG) CO LTD | NO 33 YANGZIJIANG ROAD DAGANG TOWN NEW DISTRICT JIANGSU ZHENJIANG 212132 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Kobler, Johannes | Munich, DE | 7 | 52 |
# of filed Patents : 7 Total Citations : 52 | |||
Papakyriacou, Maria | Vienna, AT | 12 | 114 |
# of filed Patents : 12 Total Citations : 114 | |||
Sauer, Jürgen | Munich, DE | 7 | 36 |
# of filed Patents : 7 Total Citations : 36 |
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- C01B Class
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- 8 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 14, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 14, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
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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

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Dec 24, 2007 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Nov 23, 2007 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Nov 23, 2007 |
Nov 23, 2007 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Jun 07, 2007 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Apr 30, 2003 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Nov 23, 1999 | I | Issuance | |
Jun 26, 1998 | F | Filing | |
Jun 17, 1998 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GERTEIS, HANS;REEL/FRAME:009321/0460 Owner name: HEINKEL INDUSTRIEZENTRIFUGEN GMBH & CO., GERMANY Effective Date: Jun 17, 1998 |
Nov 08, 1996 | PD | Priority Date |

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