# ISO 1177:1973 — Withdrawn and superseded ISO standards

For ISO 1177:1973, item title is Information processing — Character structure for start/stop and synchronous transmission; status code is 9599; successor is ISO 1177:1985; withdrawn / published date is 1973-11-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 1177:1973 _(verified: appears in the quote below)_
- **Item title:** Information processing — Character structure for start/stop and synchronous transmission _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 1177:1985
- **Withdrawn / published date:** 1973-11-01 _(verified: appears in the quote below)_

## What the source says

> 5761,IS,,ISO 1177:1973,Information processing — Character structure for start/stop and synchronous transmission,Traitement de l'information — Structure des caractères pour la transmission série arythmique et synchrone,1973-11-01,1,['35.100.20'],ISO/IEC JTC 1/SC 2,9599,,[5762],"['en','fr']",2,

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).