Solicitação de exame técnico
#4.1
10/10/1989
RPI 990
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Official data from INPI
PROCESSO E APARELHO PARA A FORMAÇÃO DE ESPUMA EM BETUME
Em AnáliseInvention PatentPCT · NO1986000074
Application data
Number
PI8606957Type
Invention Patent
Filing
11/03/1986
Publication
11/03/1987
PCT
NO1986000074 Progress at the INPI
- Filing11/03/86
- Publication11/03/87
- Examination10/10/89
- Allowance07/20/93
- Grant02/16/94
- 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: 10/10/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Nodest Vei A/S
NO
Inventors
E. A. (pessoa física)
NO
J. W. (pessoa física)
NO
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação de entrada na fase nacional - PCT
#1.3
11/03/1987
RPI 889
Carta-patente expirada
#21.1
Patente extinta em 03/11/2001
07/22/2008
RPI 1959
Concessão da patente
#16.1
02/16/1994
RPI 1211
Deferimento
#9.1
07/20/1993
RPI 1181
Conhecimento de parecer técnico
#7.1
10/06/1992
RPI 1140
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