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Canon Patent Application: The RF 24-105 F4L IS USM and other new RF Lenses
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Canon Patent Application: The RF 24-105 F4L IS USM and other new RF Lenses

It seems that Canon even held onto the patent applications for the RF lenses until the very end. Sneaky.

Here is the patent application for the 24-105 RF lens, for those more curious.

This patent also includes embodiments for a future 24-70 2.8L and a 24-300 4-5.6

US Patent Application 2018-0252895

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How to view Japan Patent applications.

Unfortunately, there's no direct way of linking to the patent application (sad!) however, this is the easiest process to view a japan patent or application.

  1. Go to the Japan Patent Office search page.
  2. If it's a patent application (they are usually in the format of Year-Number ie: 2017-011300) then type the patent application number into the second field down from the top where it says publication of patent application. 
  3. Click on search.
  4. Then click on the patent application number link, and there's the patent application!

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