Solicitação de exame técnico
#4.1
06/09/1987
RPI 868
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Official data from INPI
PROCESSO DE PREPARAÇÃO DE ÉSTERES METACRÍLICOS POR TRANSESTERIFICAÇÃO.
Em AnáliseInvention Patent
Application data
Number
PI8603245Type
Invention Patent
Filing
07/10/1986
Publication
02/24/1987
Progress at the INPI
- Filing07/10/86
- Publication02/24/87
- Examination06/09/87
- Allowance09/08/93
- Grant05/31/94
- 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: 06/09/1987. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Great Lakes Chemical France S.A
FR
Societe Française D'organo Synthse (S.F.O.S.)
FR
Inventors
P. G. (pessoa física)
FR
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Publicação do pedido de patente
#3.1
02/24/1987
RPI 853
Pedido de patente depositado
#2.1
12/30/1986
RPI 845
Carta-patente expirada
#21.1
Patente extinta em 10/07/2001
07/22/2008
RPI 1959
Concessão da patente
#16.1
05/31/1994
RPI 1226
14.4
03/08/1994
RPI 1214
14.7
03/01/1994
RPI 1213
14.7
02/16/1994
RPI 1211
Deferimento
#9.1
09/08/1993
RPI 1188
Exigência - art. 36 da LPI
#6.1
02/04/1992
RPI 1105
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