Notificação de entrada na fase nacional - PCT
#1.3
10/31/1989
RPI 993
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Official data from INPI
ELEMENTO DE AQUECIMENTO DE SUPERFÍCIE PARA PARTES DE FERRAMENTA E DE MÁQUINA
Arquivada/ExtintaInvention PatentPCT · DE1988000376
Application data
Number
PI8807137Type
Invention Patent
Filing
06/23/1988
Publication
10/31/1989
PCT
DE1988000376 Progress at the INPI
- Filing06/23/88
- Publication10/31/89
- Examination05/14/91
- Allowance05/10/94
- Grant11/29/94
- Expired09/02/08
The letters patent expired on 09/02/2008: 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: 10/31/1989. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Ewikon Entwicklung Und Konstruktion GmbH & Co Kg
DE
Inventors
W. M. (pessoa física)
BR
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Carta-patente expirada
#21.1
Patente extinta em 23/06/2003
09/02/2008
RPI 1965
Concessão da patente
#16.1
11/29/1994
RPI 1252
Notificação para pagamento de retribuição
#13.1
09/27/1994
RPI 1243
Deferimento
#9.1
05/10/1994
RPI 1223
Solicitação de exame técnico
#4.1
05/14/1991
RPI 1067
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