Radar rangefinder
CA 2325418 A1 · Owner: Kolbli, Bertram · Inventors: Ohl, Theodor; Konig, Axel; Lolkes, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The inventive radar rangefinder has a transmitting/receiving antenna (22) for surveying a danger area. Said antenna is located in a radome housing (12) on , a rotatable platform (18). A reflector is placed at a known distance in order to calibrate the device. This reflector is formed by an auxiliary antenna (24) with a connected delay line (26) inside the randome housing (12). The length of the virtual distance of the reflector produced then corresponds to the velocity factor of the delay line used.
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 March 23, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 23, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 23, 2021.
- 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.