Concessão da patente
#16.1
08/29/1989
RPI 984
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Application data
Number
PI8303709Type
Invention Patent
Filing
07/11/1983
Publication
02/21/1984
Progress at the INPI
- Filing07/11/83
- Publication02/21/84
- Examination06/10/86
- Allowance01/10/89
- Grant08/29/89
- Expired07/01/08
The letters patent expired on 07/01/2008: 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: 08/29/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
W. C. (pessoa física)
US
Inventors
S. S. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação para pagamento de retribuição
#13.1
05/30/1989
RPI 971
Deferimento
#9.1
01/10/1989
RPI 951
Republicação - classificação IPC
#15.11
09/27/1988
RPI 936
Exigência - art. 36 da LPI
#6.1
06/28/1988
RPI 923
6.2
09/15/1987
RPI 882
Solicitação de exame técnico
#4.1
06/10/1986
RPI 816
Publicação do pedido de patente
#3.1
02/21/1984
RPI 696
Pedido de patente depositado
#2.1
08/23/1983
RPI 670
Carta-patente expirada
#21.1
Patente extinta em 11/07/98
07/01/2008
RPI 1956
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