Solicitação de exame técnico
#4.1
04/14/1987
RPI 860
Application data
Number
PI8601895Type
Filing
Publication
The letters patent expired on 12/05/2012: 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: 04/14/1987. We update with every new RPI gazette, published weekly.
Applicants
Rohm And Haas Company
US
Inventors
G. R. (pessoa física)
US
R. N. (pessoa física)
US
IPC Classification
Priority claims
US
728,992 · 04/30/1985
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
04/14/1987
RPI 860
#3.1
12/30/1986
RPI 845
#2.1
11/04/1986
RPI 837
#21.1
Patente extinta em 19/10/2009
12/05/2012
RPI 2187
Referência: RPI 1502 de 19/10/1999ítem - prazo de validade
07/04/2000
RPI 1539
#16.1
10/19/1999
RPI 1502
#9.1
11/03/1998
RPI 1452
#6.1
06/02/1998
RPI 1432
#6.1
04/27/1993
RPI 1169
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