Object identification system
CA 1092687 A · Owner: Kilo Corporation · Inventors: Lennington, John W.; Sternberg, Stanley R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A transponder/interrogator system for remotely identifying objects. The interrogator emits infrared pulses to activate and remotely clock the transponder. Upon such activation, the transponder emits in synchronism with the interrogator pulse a unique code in the form of infrared pulses in accordance with a program stored in a recirculating shift register. The interrogator receives the infrared pulses from the transponder and may be associated with various code utilization devices as described herein.
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 December 30, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 30, 1997.
- 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.