Carta-patente expirada
#21.1
Patente extinte em 20/08/2011
06/04/2013
RPI 2213
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Official data from INPI
PROCESSO PARA A PREPARAÇÃO DE UM COMPOSTO DE UM MONOMALEIMIDA DE COLOFÔNIO E COMPOSIÇÃO DE BORRACHA
Arquivada/ExtintaInvention Patent
Application data
Number
PI9103571Type
Invention Patent
Filing
08/20/1991
Publication
05/12/1992
Progress at the INPI
- Filing08/20/91
- Publication05/12/92
- Examination07/05/94
- Allowance08/17/99
- Grant02/22/00
- Expired06/04/13
The letters patent expired on 06/04/2013: 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: 06/04/2013. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
The Goodyear Tire & Rubber Company
US
Inventors
L. W. (pessoa física)
US
P. S. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
02/22/2000
RPI 1520
Deferimento
#9.1
08/17/1999
RPI 1493
Exigência - art. 36 da LPI
#6.1
12/01/1998
RPI 1456
Solicitação de exame técnico
#4.1
07/05/1994
RPI 1231
Publicação do pedido de patente
#3.1
05/12/1992
RPI 1119
Pedido de patente depositado
#2.1
09/24/1991
RPI 1086
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