Monolithic astable oscillator circuit
CA 1162256 A · Owner: Ael Microtel, Ltd. · Inventors: Huntley, Christopher R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
D-22,817, A MONOLITHIC ASTABLE OSCILLATOR CIRCUIT by, Christopher R. Huntley, Abstract of the Disclosure First and second NPN transistors are direct connected in an astable multivibrator configuration. Each collector is connected to the positive terminal of a DC power source through series connected diodes. A resistor which is selected to control the amplitude of oscillation is, connected between the collectors. The frequency of oscillation is controlled by a frequency determining component which is connected between the emitters of said transistors. The emitters are connected to current sources.
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 February 14, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 14, 2001.
- 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.