Canadian application, no grantCanada
Optical fiber connector
CA 2023879 A1 · Owner: Daiichi Denshi Kogyo Kabushiki Kaisha · Inventors: Takeda, Mitsuru
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure An optical fiber connector using precision ferrule, in which either one of a pair of ferrules (30A) and (30B) can move backwardly while constraining spring (50), the optical connection is not interrupted. - 13 -
Read the whole patent
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 23, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 23, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 23, 2012.
- 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 23, 1990
GrantedNo grant recorded
Term endedAugust 23, 2010
Patent numberCA 2023879 A1
Classification (IPC)G02B6/38
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.