Carta-patente expirada
#21.1
Patente extinta em 20/09/2009
12/26/2012
RPI 2190
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Official data from INPI
PROCESSO PARA A SÍNTESE CATALISADA DE ACRILAMIDAS N-SUBSTITUÍDAS
Arquivada/ExtintaInvention Patent
Application data
Number
PI8904728Type
Invention Patent
Filing
09/20/1989
Publication
05/01/1990
Progress at the INPI
- Filing09/20/89
- Publication05/01/90
- Examination06/23/92
- Allowance11/10/98
- Grant07/13/99
- Expired12/26/12
The letters patent expired on 12/26/2012: 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: 12/26/2012. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
The Goodyear Tire & Rubber Company
US
Inventors
D. P. (pessoa física)
US
J. G. (pessoa física)
US
Technical data
IPC Classification
Priority claims
US
249.550 · 09/26/1988
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
07/13/1999
RPI 1488
Deferimento
#9.1
11/10/1998
RPI 1453
Exigência - art. 36 da LPI
#6.1
06/09/1998
RPI 1433
Solicitação de exame técnico
#4.1
06/23/1992
RPI 1125
Publicação do pedido de patente
#3.1
05/01/1990
RPI 1016
Pedido de patente depositado
#2.1
02/13/1990
RPI 1006
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