Invention Grant
- Patent Title: End-of-life bulb circuitry
- Patent Title (中): 寿命终止灯泡电路
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Application No.: US13062195Application Date: 2009-09-08
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Publication No.: US09107273B2Publication Date: 2015-08-11
- Inventor: Ronald J. Lenk , Carol Lenk , Ethan Thorman
- Applicant: Ronald J. Lenk , Carol Lenk , Ethan Thorman
- Applicant Address: US CA San Jose
- Assignee: Switch Bulb Company, Inc.
- Current Assignee: Switch Bulb Company, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Morrison & Foerster LLP
- International Application: PCT/US2009/005021 WO 20090908
- International Announcement: WO2010/030332 WO 20100318
- Main IPC: H05B37/02
- IPC: H05B37/02 ; H05B33/08
Abstract:
An LED light bulb which turns itself permanently off when it reaches the end of its useful life, and more particularly, to a scheme which slightly varies the end-of-life condition from unit to unit.
Public/Granted literature
- US20110210669A1 END-OF LIFE CIRCUITRY Public/Granted day:2011-09-01
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