Metal fastening member and outer casing member for a bullet
CA 2436446 C · Owner: Nagayama Electronic Industry Co. Ltd. · Inventors: Nagayama, Yutaka
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A T nut has a cap portion (45) integrally formed continuous from a tip end portion of a flarable portion (34). At a connecting region between flarable portion (34) and cap portion (45) an inner surface (44) of flarable portion (34) is formed recessed outward. Because of this structure a metal fastening member can be provided which has such a structure that enables driving into an object of fixing exactly without the necessity of providing a receiving hole in advance.
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 August 23, 2000 and granted October 25, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 23, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 23, 2022.
- 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.