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1answer
23 views

Can I please see a picture of this?

I was just really wondering if there was a picture I could view of this invention WO2004085005A3?
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4answers
51 views

How can you renew an expired patent?

I've been researching on how to renew an expired patent, and all I get for results are maintenance fees for patents filed on or after December 12th 1980. I am hoping someone would have an idea or an ...
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1answer
29 views

I Have an idea , it is similar to a couple of other patented ideas [duplicate]

The idea simply involves using compressed air to spin (a) stator/rotor(s) and, in turn, charge (a) battery (ies) that powers the electric motor. I want to contact these people and move the ...