Window fan with oscillating fan enclosure
CA 2184884 C · Owner: Wang, Jui-Shang · Inventors: Chiu, Bernard; Marvin, Robert L. Jr.; Wang, Jui-Shang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A portable electric fan including a housing adapted for substantially covering a window opening an enclosure movably, mounted on the housing and defining an intake opening and a discharge opening, an enclosure drive coupled to the enclosure and operable to produce movement thereof on the housing a, movable blade mechanism retained in the enclosure and operable to produce air flow between the intake and discharge openings and a blade drive coupled to the blade mechanism and operable to produce movement thereof.
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 September 5, 1996 and granted January 22, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 5, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 5, 2018.
- 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.