Volatile memory hold device
CA 1107402 A · Owner: Omron Tateisi Electronics Co. · Inventors: Sakaguchi, Shunichi; Okamoto, Kiyohide
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A volatile memory hold device comprising power terminals to which a power source is connectable a volatile memory, connected to the power terminals which serves as input power terminals therefor, and a charge-and-discharge circuit connected to the power terminal in parallel with the memory the charge-and-discharge circuit including a capacitor which is charged by the power for the volatile memory and which supplies the memory with power discharged therefrom whereby, the memory retains stored data even when power suppied from the power source is no longer available.
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
- Granted August 18, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 1998.
- 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.