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Patent No. USD513117 S1--Is this still a valid patent?

I'm trying to find out if this Patent No. USD513117 S1 is still valid. How can I find out for sure? Thanks for your help!
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0answers
7 views

what is the status of US6488034?

i'd like to check is this patent (6488034 File, particularly nail file ) still valid? was it renewed? tnx Sharon Katz
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0answers
38 views

What is the status of US2014089141, WO2012123026 A1, US20120036155 A1?

The follow up questions is how do I know if I have prior art against these patents (or applications)? If one of them has been granted is the process to submit prior art different?
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92 views

Where can I see in which country a patent is valid?

I am looking through Google Patents and reading the paperwork of various patents. In what section can I see under which country the patent is valid?
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Challenging a granted patent?

I found a patent which was granted but the product which is claiming the patent is different from the contents of the patent. How does one challenge the validity of the patent?
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1answer
86 views

Does clarity of a patent affect its value?

There is much talk about how software patents are deliberately written in an obfuscated manner, as a ploy that contravenes the purpose of the system. It seems to me that one could argue the ...
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1answer
40 views

Is US5090167A a valid patent?

Hi I am wondering if this patent- US5090167A is still valid?
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493 views

Is Imported Product Made in Foreign Country Prior art to US Method Patent?

I have a question relating to whether an imported product made in a foreign country by a patented method, before the method was patented, would be prior art to the method patent. That's a mouthful, ...