Solicitação de exame técnico
#4.1
05/05/1987
RPI 863
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Official data from INPI
PROCESSO PARA RECUPERAÇÃO DE QUITOSANO DE BIOMASSA CONTENDO QUITINA
Em AnáliseInvention Patent
Application data
Number
PI8602673Type
Invention Patent
Filing
06/09/1986
Publication
02/03/1987
Progress at the INPI
- Filing06/09/86
- Publication02/03/87
- Examination05/05/87
- Allowance10/01/91
- Grant06/30/92
- Expired07/22/08
The letters patent expired on 07/22/2008: 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: 05/05/1987. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Miles Laboratories, Inc.
US
Inventors
D. H. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Publicação do pedido de patente
#3.1
02/03/1987
RPI 850
Pedido de patente depositado
#2.1
01/21/1987
RPI 848
Carta-patente expirada
#21.1
Patente extinta em 09/06/2001
07/22/2008
RPI 1959
Concessão da patente
#16.1
06/30/1992
RPI 1126
Notificação para pagamento de retribuição
#13.1
02/04/1992
RPI 1105
Deferimento
#9.1
10/01/1991
RPI 1087
Exigência - art. 36 da LPI
#6.1
01/29/1991
RPI 1052
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