Carta-patente expirada
#21.1
Patente extinta em 09/05/2005
05/18/2010
RPI 2054
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Official data from INPI
PROCESSO PARA PREPARAR COPOLÍMEROS HIDROSSOLÚVEIS, E, COMPOSIÇÃO DETERGENTE
Arquivada/ExtintaInvention Patent
Application data
Number
PI9002161Type
Invention Patent
Filing
05/09/1990
Publication
08/13/1991
Progress at the INPI
- Filing05/09/90
- Publication08/13/91
- Examination08/03/93
- Allowance08/27/96
- Grant04/29/97
- Expired05/18/10
The letters patent expired on 05/18/2010: 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: 05/18/2010. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Rohm And Haas Company
US
Inventors
G. S. (pessoa física)
US
K. H. (pessoa física)
US
Technical data
IPC Classification
Priority claims
US
353,376 · 05/17/1989
US
502,100 · 03/30/1990
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
04/29/1997
RPI 1378
Notificação para pagamento de retribuição
#13.1
03/25/1997
RPI 1373
Deferimento
#9.1
08/27/1996
RPI 1343
Exigência - art. 36 da LPI
#6.1
12/12/1995
RPI 1306
Solicitação de exame técnico
#4.1
08/03/1993
RPI 1183
Publicação do pedido de patente
#3.1
08/13/1991
RPI 1080
Pedido de patente depositado
#2.1
09/18/1990
RPI 1033
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