At 11:20 29/07/2010 +0200, Werner LEMBERG wrote:
can you answer this mail?
No problem :-)
> I. IMPORTANT CHANGES
>- Since May 2010, all patents regarding the TrueType bytecode
> interpreter have expired worldwide. Consequently, we now define
> TT_CONFIG_OPTION_BYTECODE_INTERPRETER by default (and undefine
> TT_CONFIG_OPTION_UNPATENTED_HINTING).
I think that not yet expired US5325479.
US5325479 is until June,2011 ? (1994-06-28 + 17year)
Please teach expired grounds. Kind Regards
I did the research on this for the Ghostscript project, which was reviewed
by a US patent lawyer, so I'm reasonably sure of my ground.
If you look at Ghostscript bug #690621 :
http://bugs.ghostscript.com/show_bug.cgi?id=690621
you can find a complete description of all the relevant patents I was able
to locate, their filing and grant dates and an explanation of how I arrived
at the expiration dates, based on the patent law in the country of application.
The short answer for US patent US5325479 is that on the USPTO web site:
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=43&f=G&l=50&co1=AND&d=PTXT&s1=5325479&OS=5325479&RS=5325479
there is a notice which states that 'The portion of the term of this patent
subsequent to October 13, 2009 has been disclaimed'. (Just below the
Inventors and Assignee in the box below the Abstract)
To me this means (and our patent lawyer seems to agree) that Apple have
given up the right to that patent from October 13 2009. This is the date
when the original patent on which it depends, US5155805, expired.
Ken
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