Notificação para pagamento de retribuição
#13.1
12/22/1981
RPI 583
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Official data from INPI
SISTEMA DE SORPCAO PARA UTILIZACAO DE CALOR DE BAIXO GRAU;SISTEMA PARA UTILIZACAO DE CALOR DE BAIXO GRAU E APARELHO PARA BOMBEAR UM FLUIDO GASOSO
Em AnáliseInvention Patent
Progress at the INPI
- Filing05/10/77
- Publication
- Examination
- Allowance
- Grant
- Expired07/06/93
The letters patent expired on 07/06/1993: 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: 12/22/1981. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
T. D. (pessoa física)
Inventors
No inventors listed.
Technical data
IPC Classification
No IPC classification.
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Carta-patente expirada
#21.1
07/06/1993
RPI 1179
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