Carta-patente expirada
#21.1
Patente extinta em 13/12/2011
06/11/2013
RPI 2214
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Official data from INPI
PROCESSO PARA O TRATAMENTO DE SUPERFÍCIES DE MASSAS PRENSADAS DE GRAFITA
Arquivada/ExtintaInvention Patent
Application data
Number
PI9105442Type
Invention Patent
Filing
12/13/1991
Publication
08/25/1992
Progress at the INPI
- Filing12/13/91
- Publication08/25/92
- Examination10/18/94
- Allowance09/29/98
- Grant07/27/99
- Expired06/11/13
The letters patent expired on 06/11/2013: 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: 06/11/2013. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Robert Bosch GmbH
DE
Inventors
D. L. (pessoa física)
DE
H. R. (pessoa física)
DE
Technical data
IPC Classification
Priority claims
DE
P 40 41 577.5 · 12/22/1990
DE
P 41 34 463.4 · 10/18/1991
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
07/27/1999
RPI 1490
Republicação - classificação IPC
#15.11
Alterada a Classificação para Int.Cl.6 C25F 3/12.
09/29/1998
RPI 1449
Deferimento
#9.1
09/29/1998
RPI 1449
Exigência - art. 36 da LPI
#6.1
05/05/1998
RPI 1428
Solicitação de exame técnico
#4.1
10/18/1994
RPI 1246
Publicação do pedido de patente
#3.1
08/25/1992
RPI 1134
Pedido de patente depositado
#2.1
02/04/1992
RPI 1105
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