Has the patent been issued? Has been approved for manufacturing?
In reference to the patent: US20120049410
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That's a patent application, not a grant.
Usually a granted patent is identifiable on Google patents site:
Publication typein the blue cartouche shows
Grantas opposed to
Application Numberon the following line
Discuss this Applicationblue button reads
Discuss this Patentinstead
Grant, which you can use to navigate between the 2 corresponding docs
You can see these details here: US8967989
I got to this patent by following the
Inventors link from the cartouche to see other patent-related work from the same author. In the doc list obtained one can quickly check the word preceeding the filing date to distinguish between grants (
Grant) and applications (
For the 2nd question: approval for manufacturing doesn't really have anything to do with IP protection (which is what the patent application/grant process is about).
One useful tool is USPTO Public PAIR found at http://portal.uspto.gov/pair/PublicPair. Enter the publication number or application number to see the status. For a published US application, the entire process is available for viewing or downloading including the rejections offered by the USTPO and any amendments to the claims or arguments by the applicant. In this case, the application has been rejected five times with the most recent rejection in April of 2016.
Using PAIR is the only way to know for sure that an application has been rejected and the applicant has given up the fight. You need to check the continuity tab to ensure that the applicant has not moved the fight to a new application number with the same disclosure.
Touching base with a patent attorney can let you understand the unusual events such as a patent application getting revived for unintentional abandonment or restarting from a parallel PCT application but PAIR is a great tool for those looking to do some research on their own.