Device for suppressing multiple registration
CA 1082816 A · Owner: Siemens Aktiengesellschaft · Inventors: Bauer, Lothar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In the case of data-transmission installations having interrogating and answering units moving relation to each other the data received is, fed alternately to one of two storage devices where they are intermediately, store. The data last received and stored in one device is compared with that immediately previously received and stored in the other storage device. If there is a difference, the last received data is recorded. The device is intended for automatic freight-car-member reporting and for spot train control in railroads.
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 July 29, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 29, 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.