Pedido de licença compulsória
#20.1
02/08/1989
RPI 955
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Application data
Number
PI8103491Type
Invention Patent
Filing
06/03/1981
Publication
02/24/1982
Progress at the INPI
- Filing06/03/81
- Publication02/24/82
- Examination12/27/83
- Allowance09/18/84
- Grant05/28/85
- Expired10/08/96
The letters patent expired on 10/08/1996: 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: 02/08/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Pirelli General Plc.
GB
Inventors
W. F. (pessoa física)
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
05/28/1985
RPI 762
Notificação para pagamento de retribuição
#13.1
01/15/1985
RPI 743
14.7
01/02/1985
RPI 741
14.4
12/26/1984
RPI 740
14.4
12/18/1984
RPI 739
Deferimento
#9.1
09/18/1984
RPI 726
Solicitação de exame técnico
#4.1
12/27/1983
RPI 688
Publicação do pedido de patente
#3.1
02/24/1982
RPI 592
Carta-patente expirada
#21.1
10/08/1996
RPI 1349
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