Carta-patente expirada
#21.1
Patente extinta em 28/03/2010
01/08/2013
RPI 2192
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Official data from INPI
COMPOSIÇÕES DE POLÍMERO RETARDADORAS DE CHAMA
Arquivada/ExtintaInvention Patent
Application data
Number
PI9001416Type
Invention Patent
Filing
03/28/1990
Publication
04/09/1991
Progress at the INPI
- Filing03/28/90
- Publication04/09/91
- Examination06/22/93
- Allowance02/23/99
- Grant08/24/99
- Expired01/08/13
The letters patent expired on 01/08/2013: 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: 01/08/2013. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Shell Internationale Research Maatschappij B.V.
NL
Inventors
D. S. (pessoa física)
US
J. S. (pessoa física)
NL
R. D. (pessoa física)
US
Technical data
IPC Classification
Priority claims
GB
8910388.1 · 05/05/1989
US
332,249 · 03/31/1989
US
332,636 · 03/31/1989
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Republicação - classificação IPC
#15.11
Alterado da Int Cl5 C08G 67/02; C08L 53/00.
11/21/2000
RPI 1559
Concessão da patente
#16.1
08/24/1999
RPI 1494
Deferimento
#9.1
02/23/1999
RPI 1468
Exigência - art. 36 da LPI
#6.1
09/24/1996
RPI 1347
Solicitação de exame técnico
#4.1
06/22/1993
RPI 1177
Publicação do pedido de patente
#3.1
04/09/1991
RPI 1062
Pedido de patente depositado
#2.1
06/26/1990
RPI 1024
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