Concessão da patente
#16.1
11/28/1989
RPI 997
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Official data from INPI
PROCESSO PARA A REGULAÇÃO DO PESO MOLECULAR DE UM ALTO CIS-1,4-POLIBUTADIENO
ConcedidaInvention Patent
Application data
Number
PI8301901Type
Invention Patent
Filing
04/14/1983
Publication
12/20/1983
Progress at the INPI
- Filing04/14/83
- Publication12/20/83
- Examination12/03/85
- Allowance09/12/89
- Grant11/28/89
- Expired07/01/08
The letters patent expired on 07/01/2008: 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: 11/28/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
The Goodyear Tire & Rubber Company
US
Inventors
K. C. (pessoa física)
US
L. K. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
100
09/12/1989
RPI 986
120
02/21/1989
RPI 957
Petição de recurso
#12.2
09/13/1988
RPI 934
Indeferimento
#9.2
06/07/1988
RPI 920
Conhecimento de parecer técnico
#7.1
09/01/1987
RPI 880
6.2
01/13/1987
RPI 847
Solicitação de exame técnico
#4.1
12/03/1985
RPI 789
Publicação do pedido de patente
#3.1
12/20/1983
RPI 687
Pedido de patente depositado
#2.1
05/31/1983
RPI 658
Carta-patente expirada
#21.1
Patente extinta em 14/04/98
07/01/2008
RPI 1956
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