SWATCH PATENT RECORD / FILING DATE
What date was the Swatch industrial patent filed?
CH 638 073
Control mechanism for watches with an analog display
26 February 1981
For CH 638 073 / CH638073B, the public patent record lists 26 February 1981 as the filing date. The Swatch Group archive confirms the 1981 reference, but does not print the exact day itself.
Deutsch
Das Patent CH 638 073 wurde am 26. Februar 1981 angemeldet.
Das Swatch-Archiv bestätigt das Jahr 1981; das genaue Datum stammt aus dem öffentlichen Patentdatensatz.
Record
CH 638 073
Application
CH127981A
Filing date
1981-02-26
Archive year
Priority date
Exact day
1981 and 1982 records
26 February 1981
CH638073B / CH127981A · correct Swiss filing date
26 February 1982
may refer to a related foreign or family filing, not CH 638 073
The 1982 explanation is a record-family distinction, not a second filing date for the Swiss CH638073B record.
Swatch patent index
Related records, drawings, inventors, claims, assignees and source links.
Open the industrial patent databaseOfficial evidence
Swatch Group patent statement · 11 May 2016
4-page PDF · hosted by Swatch Group