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Re:The patent on SIFT expired yesterday by exikyut on Monday March 09, 2020 @12:51AM (#22523076)
More info about what this actually is: https://en.wikipedia.org/wiki/Scale-invariant_feature_transf...

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Also, reading the listing, I see

2020-03-06 - Anticipated expiration

2020-03-08 - Application status is Active

Is "active" some kind of obscure reference with a nonintuitive meaning, or did the patent owner reapply for the patent?

Re:The patent on SIFT expired yesterday by mkl on Monday March 09, 2020 @03:32AM (#22523620)
You can't reapply for patents like that, but I don't know what that status means. Patents often get an adjustment to their term and last a bit more than their nominal 20 years (due to delays being issued, etc.). https://en.wikipedia.org/wiki/Term_of_patent
Re:The patent on SIFT expired yesterday by lifthrasiir on Monday March 09, 2020 @03:53AM (#22523723)
I was also a bit confused, but it turns out that the last line is always dated today (in the local time zone ;-) and displays the last known status, which may be, and in this case definitely is, outdated.
Re:The patent on SIFT expired yesterday by vortico on Monday March 09, 2020 @10:22AM (#22525545)