Normal, Illinois
United States
4
2008-10-30
The entities that hold a legal rights for patent applications filed by inventor Hampton Len:
Len Hampton from Normal, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Upright vacuum cleaner with cyclonic air path
#2 | 2007-10-04Upright vacuum cleaner with cyclonic air path
#3 | 2006-04-06Upright vacuum cleaner with cyclonic air path
#4 | 2005-06-28Upright vacuum cleaner with cyclonic air path
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