Carta-patente expirada
#21.1
07/13/1993
RPI 1180
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Official data from INPI
DISPOSITIVO ELETROMAGNETICO DE INDUCAO
Arquivada/ExtintaInvention Patent
Progress at the INPI
- Filing07/12/76
- Publication
- Examination
- Allowance
- Grant
- Expired07/13/93
The letters patent expired on 07/13/1993: 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: 07/13/1993. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
S. R. (pessoa física)
Inventors
D. J. (pessoa física)
Technical data
IPC Classification
No IPC classification.
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Related
From the same holder
PROCESSO DE AFINACAO DE UM BANHO DE METAL NUM CADINHO COM INSUFLACAO DE OXIGENIO POR CIMA, E CADINHO PARA REALIZACAO DO MESMOPECA REFRATARIA PERMEAVEL AOS GASES E PROCESSO PARA FABRICACAO DA MESMAAPERFEICOAMENTO EM CADINHOS METALURGICOS E INSTALACAO DE TRATAMENTO DE METAISCADINHO METALURGICOPROCESSO E DISPOSITIVO PARA ELABORACAO DE ACO A PARTIR DE UMA CARGA METALICA CARBONETADA
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