16.3
07/29/1986
RPI 823
The letters patent expired on 04/25/1995: 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: 07/29/1986. We update with every new RPI gazette, published weekly.
Applicants
Imperial Chemical Industries Plc.
GB
Inventors
H. R. (pessoa física)
IPC Classification
Priority claims
GB
42267/78 · 10/27/1978
GB
45943/78 · 11/24/1978
Publications in the Brazilian Industrial Property Gazette (RPI).
07/29/1986
RPI 823
#16.1
04/29/1986
RPI 810
#13.1
01/14/1986
RPI 795
#9.1
09/10/1985
RPI 777
#6.1
10/09/1984
RPI 729
#15.11
09/25/1984
RPI 727
#6.1
01/10/1984
RPI 690
#4.1
08/31/1982
RPI 619
#21.1
04/25/1995
RPI 1273
From the same holder
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