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Canadian application, no grantCanada

Optical fiber end face polishing machine

CA 2397886 A1 · Owner: Seikoh Giken Co. Ltd. · Inventors: Kimura, Yoshitaka; Arai, Yuichi; Narita, Takehiko

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The center of a turntable 30 moves around the central axial line of an autoroation disk 20 along, the circular orbit C of a smaller diameter than that of an autorotation disk 20: Thus, the turntable 30, revolves both around a center point O and on its own axis in accordance with an autorotation of the, autorotation disk 20. A polishing holder 60 holds a connector of an optical fiber polished by a polishing, film 41 arranged on the upper plane of the turntable 30. An optical fiber end face polishing machine, provided with a memory 85 for storing a control program which allows a control device 80 to execute, predetermined polishing steps the control device 80 being for controlling an …

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

Why it's free to use

  • Filed August 13, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 13, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 13, 2002
GrantedNo grant recorded
Term endedAugust 13, 2022
Patent numberCA 2397886 A1
Classification (IPC)G02B6/25 +1 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedAug 13, 2002Term endedAug 13, 2022

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.