Hole puncher
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 25, 2010
Grant Date -
Dec 25, 2008
app pub date -
Jun 19, 2007
filing date -
Jun 19, 2007
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hole puncher has a base, multiple cutter brackets, multiple cutters, multiple springs, a linkage, an activating member and a handle. The base has two ends. The cutter brackets are mounted on the base. The cutters are mounted slidably through the cutter brackets. The linkage connects pivotally to one end of the base. The activating member connects pivotally to the linkage. The handle connects pivotally to the other end of the base and selectively pivots the linkage down. With the linkage and the activating member, the hole punch is effort-saving.
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