"Brevet Dem., Mod. Dep., etc.
In Swiss/French "brevet d'invention" means patent, this is often abbreviated to simply brevet. "Modèle" means design, "deposé"means to file, lodge or deposit, and "demandé" means requested. Combinations of these words, often together with the Swiss Federal Cross symbol, are often found in the backs of watch cases.
The Swiss Federal Cross usually signifies that a Patent has been granted. If there is a number it indicates the patent number, often no number is quoted.
Brevet On its own or with the Swiss Federal Cross
usually signifies that a Patent has been granted, a number indicates the patent number.
Brevet Deposé Sometimes abbreviated to "Brevet Dep." This seems to mean "Registered Patent" - perhaps that an application for a patent has been registered but the patent not yet granted, the same as Brevet Demandé.
Brevet Demandé Patent Requested. Sometimes abbreviated to Brevet Dem., Brevet
Dem, or just Br. Dem.
Modèle Déposé Registered Design. Sometimes abbreviated to Mod. Dep., Déposé or just Dep.
Dep. or Dep.
Dep. on its own or with the Swiss Federal Cross usually means Modèle Déposé as above.
Brevet Deposé and Brevet Demandé both mean essentially the same thing, that a patent has been applied for, but of course there is no guarantee that an application will result in the grant of a patent and neither are official terms. Brevet Deposé sounds more convincing, like the rather presumptive "Patent Pending", which also has no official status.
Modèle Déposé does actually mean something, the design has been officially recorded and "registered", the same as a British "Registered Design". This doesn't convey protection in the same way that a patent protects an invention, but it forms an official record of who first produced the design and can be used in cases of copyright dispute."
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