Concessão da patente
#16.1
06/02/1987
RPI 867
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Application data
Number
PI8103089Type
Invention Patent
Filing
05/15/1981
Publication
02/09/1982
Progress at the INPI
- Filing05/15/81
- Publication02/09/82
- Examination10/13/82
- Allowance09/18/84
- Grant06/02/87
- Expired10/01/96
The letters patent expired on 10/01/1996: 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: 06/02/1987. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Sumitomo Eletric Industries, Ltd.
JP
Inventors
K. S. (pessoa física)
T. K. (pessoa física)
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
11.7
04/28/1987
RPI 862
Arquivamento - Art. 38 §2° da LPI
#11.4
12/02/1986
RPI 841
Notificação para pagamento de retribuição
#13.1
03/11/1986
RPI 803
110
11/05/1985
RPI 785
Recurso
#12.1
06/18/1985
RPI 765
8.1
01/08/1985
RPI 742
Deferimento
#9.1
09/18/1984
RPI 726
Exigência - art. 36 da LPI
#6.1
04/24/1984
RPI 705
Pedido de certificado de adição de invenção
#5.1
03/15/1983
RPI 647
Solicitação de exame técnico
#4.1
10/13/1982
RPI 625
Publicação do pedido de patente
#3.1
02/09/1982
RPI 590
Carta-patente expirada
#21.1
10/01/1996
RPI 1348
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