20.11
06/16/1987
RPI 869
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Application data
Number
PI8105682Type
Invention Patent
Filing
09/04/1981
Publication
03/09/1982
Progress at the INPI
- Filing09/04/81
- Publication03/09/82
- Examination06/15/82
- Allowance05/07/85
- Grant12/31/85
- Expired08/19/08
The letters patent expired on 08/19/2008: 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: 06/16/1987. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
S. D. (pessoa física)
Inventors
E. B. (pessoa física)
Technical data
IPC Classification
No IPC classification.
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Pedido de licença compulsória
#20.1
11/04/1986
RPI 837
16.3
03/25/1986
RPI 805
Concessão da patente
#16.1
12/31/1985
RPI 793
Notificação para pagamento de retribuição
#13.1
08/27/1985
RPI 775
Deferimento
#9.1
05/07/1985
RPI 759
Republicação - classificação IPC
#15.11
01/08/1985
RPI 742
Exigência - art. 36 da LPI
#6.1
09/25/1984
RPI 727
Exigência - art. 36 da LPI
#6.1
04/17/1984
RPI 704
Solicitação de exame técnico
#4.1
06/15/1982
RPI 608
Publicação antecipada
#3.2
03/09/1982
RPI 594
Pedido de patente depositado
#2.1
10/20/1981
RPI 574
Carta-patente expirada
#21.1
Patente extinta em 04/09/96
08/19/2008
RPI 1963
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