Rain-actuated control for covering systems
CA 2024512 A1 · Owner: Hogen, Hans · Inventors: Resch, Martha
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
54) Title: RAIN-ACTUATED CONTROL FOR COVERING SYSTEMS (57) Abstract, With the rain actuated control for covering systems a device is to be, provided, which is capable of automatically closing open coverings in the event of precipitation. This device must be simple and easy to retrofit on existing installations. As sensor for the rain-actuated control two, electrodes (1, 15), between which there is a layer of glass (13) and air (29), are used as capacitor in such a manner that in the event that, precipitation (30) is falling on the glass the dielectric is changed, so, that signals affect the control system in order to close the covering, system. Automobile windows and automobile bodies can …
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 3, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 3, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 3, 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.
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.