Carta-patente expirada
#21.1
PATENTE EXTINTA EM 11/04/2026
10/20/2026
RPI 2911
Progress at the INPI
- Filing
- Publication
- Examination
- Allowance
- Grant
- Expired10/20/26
The letters patent expired on 10/20/2026: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 10/20/2026. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
ZEN S.A. INDÚSTRIA METALÚRGICA
SC, BR
Inventors
No inventors listed.
Technical data
IPC Classification
No IPC classification.
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
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