A tape measure with innovated brake stucture
CA 2246983 A1 · Owner: Lin, Li Shinh · Inventors: Lin, Li Shinh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein is a tape measure with innovated brake structure characterized in that, the brake mechanism comprises a release key a brake, and a stopper. The upper , end of the brake is in connection with the release key and an intermediate , protrusion of, the brake directly presses its upper end so as to control the stopper able to be tightly, pressing the tape surface against a stop block provided thereunder. By the above, described structure, the user may press the release key with a finger to retract the, extended tape after measurement work has been completed. When the release key is, released, the brake actuates the stopper to directly press the tape surface against the, …
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 14, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 14, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 14, 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.