Concave blade manual return measuring tape
CA 2243262 A1 · Owner: Bobay, Michael J. · Inventors: Moody, John B.; Bobay, Michael J.; Blackman, William C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A manual return concave blade tape measure includes a three part case in which awinding reel for the tape blade is disposed. The winding reel includes a core on which the tape blade is wound, and a flange disposed inside the case. A boss having a winding crank extends through a hole in a side of the case. A friction ring is positioned between the flange and the case wall to provide friction to resist unwanted unwinding of the tape blade. A lip in a mouth for the blade engages an end hook to secure the end hooktemporarily in the case until released by lifting upward which allows the tape blade to be, pulled from the case. The crank is angled so that when folded into a storage position an, …
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 July 15, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 15, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 15, 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.