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Method for making an optical waveguide assembly with integral alignment features

EP 1761812 A1 · Applicant: 3M Innovative Properties Company

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed April 28, 2005 and never granted as a European patent. Had it been granted, its 20-year term would have ended April 28, 2025.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledApril 28, 2005
PublishedMarch 14, 2007
GrantedNever granted
Term endedApril 28, 2025
Application numberEP 05757393
Classification (CPC)G02B6/42 +1 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedApril 28, 2005PublishedMarch 14, 2007Term endedApril 28, 2025

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