Plug
CA 2005559 A1 · Owner: Liao, Nan Whair · Inventors: Liao, Nan Whair; Liao, Nan Whair
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to an improved plus which comprises a plug body consisted of a hollow jacket and an inner box, a fuse-seat, a cap, and a electric connector; wherein the fuse-seat has an H-shaped construction with cylidrical rods which are provided with slots for receiving the fuses and are connected with copper sleeves endedly for a better electric combination; and the electric connector is inserted into the respective holes of the jacket and the box for transmitting the electric current and engaging the jacket and the box instead of known inconveniently and expensively supersonic welding connecting.
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 December 14, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 14, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 14, 2011.
- 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.