14.1
10/15/1985
RPI 782
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Official data from INPI
COMPOSIÇÃO NÃO AMARELECEDORA DE ANTIOXIDANTE-ESTABILIZADOR DE UV E COMPOSIÇÃO DE POLÍMERO EMPREGANDO A MESMA.
Em AnáliseInvention Patent
Application data
Number
PI8301285Type
Invention Patent
Filing
03/15/1983
Publication
11/22/1983
Progress at the INPI
- Filing03/15/83
- Publication11/22/83
- Examination07/30/85
- Allowance02/02/93
- Grant07/27/93
- Expired07/01/08
The letters patent expired on 07/01/2008: 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: 10/15/1985. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
Monsonto Company
US
The Dow Chemical Company
US
Inventors
B. G. (pessoa física)
US
T. N. (pessoa física)
US
Technical data
IPC Classification
Priority claims
US
362.221 · 03/26/1982
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
14.7
10/08/1985
RPI 781
Solicitação de exame técnico
#4.1
07/30/1985
RPI 771
Publicação do pedido de patente
#3.1
11/22/1983
RPI 683
Pedido de patente depositado
#2.1
05/03/1983
RPI 654
Carta-patente expirada
#21.1
Patente extinta em 15/03/98
07/01/2008
RPI 1956
16.3
11/16/1993
RPI 1198
Concessão da patente
#16.1
07/27/1993
RPI 1182
14.1
05/04/1993
RPI 1170
Deferimento
#9.1
02/02/1993
RPI 1157
Exigência - art. 36 da LPI
#6.1
02/01/1990
RPI 1004
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