Patent Yard Sign in
Expired Canadian patentCanada

Electronic weighing device having label printer

CA 1233843 A · Owner: Tokyo Electric Co. Ltd. · Inventors: Mihara, Hidemi; Aoba, Kunihiko; Tajima, Noriyasu

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

There is an electronic weighing device comprising a weighing apparatus for generating weight data responsive to the weight of a load, a memory having a true value memory area and N data memory areas for time sequentially storing the weight data from this weighing apparatus in every sampling cycle, a display device for displaying at least the true value data stored in the true value memory area, and a control unit for storing into the true value memory area the true value data calculated by processing the weight data stored in the N data memory areas in accordance with a display blinking prevention process. When it is detected that the difference between the weight data derived in two …

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 March 8, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 8, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 24, 1985
GrantedMarch 8, 1988
Term endedMarch 8, 2005
Patent numberCA 1233843 A
Classification (IPC)G01G1/26 +1 more

Timeline

Timeline From CIPO dates

1986198819901992199419961998200020022004Application filedApril 24, 1985Patent grantedMarch 8, 1988Term endedMarch 8, 2005

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.