Carta-patente expirada
#21.1
Patente extinta em 22/11/2011
06/11/2013
RPI 2214
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Official data from INPI
COMPOSIÇÃO DE LÁTEX DE POLÍMERO COM BAIXO TEOR EM FORMALDEÍDO.
Arquivada/ExtintaInvention Patent
Application data
Number
PI9105082Type
Invention Patent
Filing
11/22/1991
Publication
06/23/1992
Progress at the INPI
- Filing11/22/91
- Publication06/23/92
- Examination08/23/94
- Allowance09/08/99
- Grant03/08/00
- 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
Rohm And Haas Company
US
Inventors
R. N. (pessoa física)
US
T. H. (pessoa física)
US
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
03/08/2000
RPI 1522
Deferimento
#9.1
09/08/1999
RPI 1496
Exigência - art. 36 da LPI
#6.1
12/22/1998
RPI 1459
Solicitação de exame técnico
#4.1
08/23/1994
RPI 1238
Publicação do pedido de patente
#3.1
06/23/1992
RPI 1125
Pedido de patente depositado
#2.1
01/21/1992
RPI 1103
Pedido de patente depositado
#2.1
01/07/1992
RPI 1101
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