Free space optical broadband access system
CA 2293934 A1 · Owner: Hinterlong, Stephen Joseph · Inventors: Richardson, Robert E. Jr.; Hinterlong, Stephen Joseph; Novotny, Robert Allen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The scanning free space optical broadband access network uses LASERS to carry high-speed data streams between a central location and a number of subscribers served from that location. High-speed digital data modulates the LASERS in both directions, allowing a virtual MAN to be created. A few dozen subscribers share a single virtual pipe with several hundred Mbps bandwidth available. Beam scanning techniques at a central hub permit a single LASER and optical assembly to serve many
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 January 5, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 5, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 5, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.