Electronic delay circuits
CA 1252524 A · Owner: The Secretary Of State For Defence In Her Britannic Majesty'S Government Of The United Kingdom Of Great Britain And Northern Ireland · Inventors: Robertson, Iain T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A delayed action circuit including input connections a voltage - limiting circuit, connected to the input connections a resistance - capacitance integrating network connected to the voltage-limiting circuit and a threshold circuit connected to the integrating network, characterised in that the threshold circuit has a control input connected to the input connections for controlling its threshold voltage in response to the peak voltage of any signal applied to the input connections and thereby providing a longer delay in response to a higher peak input voltage.
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 April 11, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 11, 2006.
- 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.