Pedido de certificado de adição de invenção
#5.1
03/01/1988
RPI 906
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Official data from INPI
MATERIAL CERAMICO DE ESCORAMENTO DE RESISTENCIA MEDIA PARA USO NO FRATURAMENTO HIDRAULICO DE FORMACOES GEOLOGICAS COM RESPECTIVA UTILIZACAO
Em AnáliseInvention Patent
Application data
Number
PI8600670Type
Invention Patent
Filing
02/18/1986
Publication
09/08/1987
Progress at the INPI
- Filing02/18/86
- Publication
- Examination
- Allowance
- Grant
- In force
The application was filed at the INPI on 02/18/1986. It awaits formal examination and publication in the RPI gazette.
Latest action published by the INPI: 03/01/1988. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
SODEFIM SOCIEDADE DE DESENVOLV [BR]
Inventors
A. D. (pessoa física)
S. J. (pessoa física)
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Solicitação de exame técnico
#4.1
10/27/1987
RPI 888
Publicação do pedido de patente
#3.1
09/08/1987
RPI 881
Pedido de patente depositado
#2.1
08/05/1986
RPI 824
Retificação
#15.3
03/01/1990
RPI 1007
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