Semiconductor flow sensor
CA 1196796 A · Owner: Honeywell Inc. · Inventors: Bohrer, Philip J.; Johnson, Robert G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flow sensor comprising a pair of thin film heater sensors and a thin film heater is disclosed. The flow sensor further comprises a semiconductor body with a depression therein and means connecting the heater and the sensors to the body and bridging the depression so that at least a major portion of the heater and the sensors are out of contact with the body. The sensors are disposed on opposite sides of the heater the means, connecting comprising two thin film members bridging the depression, each member comprising one sensor and a portion of the heater.
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 November 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 19, 2002.
- 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.