Inventing law length

does anyone know when somebody invents something, for how long he/she has the right for it ? in different countries. i found copyright but it seems its for printed stuff.
Answer #1
Most stuff anyone can imagine today has already been made, you just may not hear about it. Thats the problem you have.
Answer #2
andy1033 replied: Most stuff anyone can imagine today has already been made, you just may not hear about it. Thats the problem you have.
i dont mean that. i mean as someone invented tv, for how long he has the right for it ?
Answer #3
If you patent your invention, WTO/WIPO agreement recommends that the member countries should have the patent protected for at least 20 years.
Check out the following link for more info:
http://www.wipo.int/patentscope/en/patents_faq.html
Answer #4
Zedd. replied: If you patent your invention, WTO/WIPO agreement recommends that the member countries should have the patent protected for at least 20 years.
Check out the following link for more info:
http://www.wipo.int/patentscope/en/patents_faq.html
thanx but i couldnt find the length of patent.
Answer #5
The length of the intellectual property protection granted is country specific as well.
But WTO/WIPO recommends it to be at least for 20 years, as mentioned in the above site link (though these need not be strictly adhered to by the local patent office and thus they are called recommendations rather than rules. So I’d recommend you check with the nearest office).
From the site:

Cheers, mate.
Answer #6
Answer #7
I suggest you provide more detail so that your question can be answered more thoroughly with less speculation about what is going on.
Answer #8
yup, you have to be more specific,
Patents law vary from country to country,
eg. some info for the UK
http://www.innovate-design.co.uk