Programmable remote control
CA 2069033 C · Owner: Hesse, David · Inventors: Hesse, David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electronic control device for controlling timed functions of an appliance has a processor for controlling its operation, an input for entering command and time of command information for a function to be preformed a, memory for storing information entered at the input a, real time clock, a comparator for comparing time on the real time clock with the time of command information in the memory, and actuator for effecting a command signal to be communicated to the appliance when the time of command information for a particular command matches the time on the real time clock and a feedback pick-up which is sensitive to output from the appliance. The feedback pick-up receives both on and off …
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 May 21, 1992 and granted November 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 21, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 21, 2014.
- 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.