Solicitação de exame técnico
#4.1
06/07/1988
RPI 920
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Official data from INPI
CABO DE AQUECIMENTO TIPO PARALELO ISOLADO COM MINERAL, E PRÉ-FORMADO.
Em AnáliseInvention Patent
Application data
Number
PI8700141Type
Invention Patent
Filing
01/15/1987
Publication
12/01/1987
Progress at the INPI
- Filing01/15/87
- Publication12/01/87
- Examination06/07/88
- Allowance12/01/92
- Grant05/25/93
- Expired07/29/08
The letters patent expired on 07/29/2008: 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: 06/07/1988. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Pyrotenax of Canada Limited
CA
Inventors
G. T. (pessoa física)
CA
R. R. (pessoa física)
CA
U. K. (pessoa física)
CA
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Publicação do pedido de patente
#3.1
12/01/1987
RPI 893
Pedido de patente depositado
#2.1
05/12/1987
RPI 864
Carta-patente expirada
#21.1
Patente extinta em 15/01/2002
07/29/2008
RPI 1960
Concessão da patente
#16.1
05/25/1993
RPI 1173
Deferimento
#9.1
12/01/1992
RPI 1148
Exigência - art. 36 da LPI
#6.1
03/17/1992
RPI 1111
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