20.4
06/28/1988
RPI 923
Progress at the INPI
- Filing08/21/80
- Publication04/20/82
- Examination06/22/82
- Allowance03/13/84
- Grant10/01/85
- Expired12/07/93
The letters patent expired on 12/07/1993: 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: 06/28/1988. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
PEXTRON IND ELETRONICA LTD
Inventors
G. P. (pessoa física)
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
10/01/1985
RPI 780
Notificação para pagamento de retribuição
#13.1
06/18/1985
RPI 765
110
03/26/1985
RPI 753
Recurso
#12.1
07/10/1984
RPI 716
Deferimento
#9.1
03/13/1984
RPI 699
Exigência - art. 36 da LPI
#6.1
07/05/1983
RPI 663
Solicitação de exame técnico
#4.1
06/22/1982
RPI 609
Publicação do pedido de patente
#3.1
04/20/1982
RPI 600
Carta-patente expirada
#21.1
12/07/1993
RPI 1201
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