22.9
04/26/1983
RPI 653
The letters patent expired on 07/06/1993: 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: 04/26/1983. We update with every new RPI gazette, published weekly.
Applicants
HOECHST AG
Inventors
B. G. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
04/26/1983
RPI 653
#16.1
02/22/1983
RPI 644
#13.1
10/19/1982
RPI 626
08/10/1982
RPI 616
#12.1
03/02/1982
RPI 593
#9.1
10/20/1981
RPI 574
#21.1
07/06/1993
RPI 1179
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Same category
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