Passive optical control system for boomed apparatus
CA 2421697 A1 · Owner: Altec Industries, Inc. · Inventors: Greer, Mark
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A passive optical control system for an aerial device comprising an optical signal source, an electrically passive modulator coupled with an electrically, passive input mechanism located in or on an electrically isolated work station, and, an optical receiver, wherein the source transmits an optical signal across a dielectric, gap to the modulator which modulates attenuates, or otherwise changes the , optical signal to produce a changed optical signal corresponding to a control input provided, by the input mechanism and sends the changed optical. signal back across the dielectric gap to the receiver whereafter the changed optical signal is converted to, a proportional electrical signal …
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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 March 12, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 12, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 2025.
- 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.