Vacuum cleaner
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Feb 1, 2005
Issued Date -
N/A
app pub date -
Jan 16, 2004
filing date -
Jul 16, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vacuum cleaner includes a removable filter element and an indicator member having a first position when the filter member is removed from the cleaner and a second position when the filter member is in place in the cleaner and being readily visible to a user of the vacuum cleaner in at least one of the first and second positions. When the indicator member is in the first position, the vacuum cleaner cannot be used to collect dust and dirt.
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