Supporting structure for handles of a lock
CA 2256164 A1 · Owner: Huang, Lan-Shi · Inventors: Huang, Lan-Shi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A supporting structure is provided for a lock including a latch assembly an , inside rose, with at least one positioning rod and an outside rose with two positioning tubes. The, supporting structure includes an inside rose liner having four first holes that are angularly, spaced by 90°. The positioning tubes and the positioning rod are selectively extended through, the four first holes. A first annular wall protrudes from a first side of the inside rose liner and, defines a first end face on the first side of the inside rose liner outside the first annular wall. Two protrusions are formed on a second side of the inside rose liner. An inner elastic member, is mounted to the second side …
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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 December 30, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 30, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 30, 2020.
- 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.