Concessão da patente
#16.1
06/25/1985
RPI 766
Application data
Number
PI8004010Type
Filing
Publication
The letters patent expired on 09/12/1995: 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: 06/25/1985. We update with every new RPI gazette, published weekly.
Applicants
Rohm and Haas Company
US
Inventors
B. R. (pessoa física)
V. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
06/25/1985
RPI 766
#13.1
04/16/1985
RPI 756
#9.1
12/26/1984
RPI 740
#6.1
02/14/1984
RPI 695
#4.1
02/08/1983
RPI 642
#3.1
01/21/1981
RPI 535
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C08F 120/18; C08F 2/22; C09D 3/74.
03/27/2018
RPI 2464
#21.1
09/12/1995
RPI 1293
From the same holder
Same category
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