Concessão da patente
#16.1
05/28/1985
RPI 762
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Application data
Number
PI8105206Type
Invention Patent
Filing
08/13/1981
Publication
04/27/1982
Progress at the INPI
- Filing08/13/81
- Publication04/27/82
- Examination05/29/84
- Allowance12/11/84
- Grant05/28/85
- 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: 05/28/1985. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
SONY CORP
Inventors
A. T. (pessoa física)
K. F. (pessoa física)
S. I. (pessoa física)
Technical data
IPC Classification
No IPC classification.
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Republicação - classificação IPC
#15.11
04/30/1985
RPI 758
Notificação para pagamento de retribuição
#13.1
04/09/1985
RPI 755
Deferimento
#9.1
12/11/1984
RPI 738
Solicitação de exame técnico
#4.1
05/29/1984
RPI 710
Publicação do pedido de patente
#3.1
04/27/1982
RPI 601
Carta-patente expirada
#21.1
Patente extinta em 13/08/96
08/19/2008
RPI 1963
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