Carta-patente expirada
#21.1
Patente extinta em 20/09/2004
12/22/2009
RPI 2033
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Official data from INPI
PROCESSO PARA A PREPARAÇÃO DE UMA COMPOSIÇÃO DE BORRACHA QUE APRESENTA UM ELEVADO MÓDULO DE ELASTICIDADE
Arquivada/ExtintaInvention Patent
Application data
Number
PI8904727Type
Invention Patent
Filing
09/20/1989
Publication
05/01/1990
Progress at the INPI
- Filing09/20/89
- Publication05/01/90
- Examination09/01/92
- Allowance04/30/96
- Grant03/25/97
- Expired12/22/09
The letters patent expired on 12/22/2009: 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: 12/22/2009. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
The Goodyear Tire & Rubber Company
US
Inventors
J. P. (pessoa física)
US
R. B. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
03/25/1997
RPI 1373
Deferimento
#9.1
04/30/1996
RPI 1326
Exigência - art. 36 da LPI
#6.1
07/18/1995
RPI 1285
Solicitação de exame técnico
#4.1
09/01/1992
RPI 1135
Publicação do pedido de patente
#3.1
05/01/1990
RPI 1016
Pedido de patente depositado
#2.1
03/13/1990
RPI 1009
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