Invention Grant
- Patent Title: Limited use hearing aid
- Patent Title (中): 有限使用助听器
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Application No.: US11846020Application Date: 2007-08-28
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Publication No.: US08189830B2Publication Date: 2012-05-29
- Inventor: Zezheng Hou
- Applicant: Zezheng Hou
- Applicant Address: US MN St. Paul
- Assignee: Apherma, LLC
- Current Assignee: Apherma, LLC
- Current Assignee Address: US MN St. Paul
- Agency: Lock Lord LLP
- Main IPC: H04R25/00
- IPC: H04R25/00

Abstract:
A hearing aid (or other assistive listening device) that is suitable for limited use is disclosed. The hearing aid can be configured to be usable for a predetermined period of time. After the expiration of the predetermined period of time, the hearing aid can cease to operate or operate in a degraded manner. Once the hearing aid has become significantly degraded, it can be either disposed of or reconfigured (or reprogrammed) so as to be usable for an additional period of time.
Public/Granted literature
- US20080049956A1 Limited use Hearing Aid Public/Granted day:2008-02-28
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