Carta-patente expirada
#21.1
Patente extinta em 02/08/2010
01/22/2013
RPI 2194
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Official data from INPI
COMPOSIÇÃO POLIMÉRICA DE UM POLÍMERO DE ACRILATO E UM POLÍMERO DE BUTADIENO, E, COMPOSIÇÃO APERFEIÇOADA DE HALOGENETO DE POLIVINILA
Arquivada/ExtintaInvention Patent
Application data
Number
PI9003790Type
Invention Patent
Filing
08/02/1990
Publication
09/03/1991
Progress at the INPI
- Filing08/02/90
- Publication09/03/91
- Examination01/11/94
- Allowance10/13/99
- Grant04/18/00
- Expired01/22/13
The letters patent expired on 01/22/2013: 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: 01/22/2013. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Rohm And Haas Company
US
Inventors
E. S. (pessoa física)
US
I. R. (pessoa física)
US
Technical data
IPC Classification
Priority claims
US
389,011 · 08/03/1989
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Concessão da patente
#16.1
04/18/2000
RPI 1528
Deferimento
#9.1
10/13/1999
RPI 1501
Exigência - art. 36 da LPI
#6.1
04/27/1999
RPI 1477
Exigência - art. 36 da LPI
#6.1
08/11/1998
RPI 1442
Solicitação de exame técnico
#4.1
01/11/1994
RPI 1206
Publicação do pedido de patente
#3.1
09/03/1991
RPI 1083
Pedido de patente depositado
#2.1
02/13/1991
RPI 1054
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