Carta-patente expirada
#21.1
Patente extinta em 21/08/2010
01/29/2013
RPI 2195
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Official data from INPI
DISPOSITIVO QUE FUNCIONA AUTOMÁTICA E CONTINUAMENTE PARA A DRENAGEM DE LAMA, EM PARTICULAR DE LAMA DE CLARIFICAÇÃO
Arquivada/ExtintaInvention Patent
Application data
Number
PI9004126Type
Invention Patent
Filing
08/21/1990
Publication
09/03/1991
Progress at the INPI
- Filing08/21/90
- Publication09/03/91
- Examination06/02/92
- Allowance03/03/98
- Grant11/24/98
- Expired01/29/13
The letters patent expired on 01/29/2013: 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: 01/29/2013. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
H. H. (pessoa física)
DE
Inventors
H. H. (pessoa física)
DE
Technical data
IPC Classification
Priority claims
DE
P 39 27 642.2 · 08/22/1989
DE
P 39 42 561.4 · 12/22/1989
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
11/24/1998
RPI 1455
Deferimento
#9.1
03/03/1998
RPI 1419
Exigência - art. 36 da LPI
#6.1
01/02/1996
RPI 1309
Solicitação de exame técnico
#4.1
06/02/1992
RPI 1122
Publicação do pedido de patente
#3.1
09/03/1991
RPI 1083
Pedido de patente depositado
#2.1
02/26/1991
RPI 1056
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