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#18.2
11/24/1987
RPI 892
The letters patent expired on 07/27/1993: 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: 11/24/1987. We update with every new RPI gazette, published weekly.
Applicants
ESB INC
Inventors
M. E. (pessoa física)
IPC Classification
No IPC classification.
Publications in the Brazilian Industrial Property Gazette (RPI).
#18.2
11/24/1987
RPI 892
#20.1
04/10/1984
RPI 703
03/07/1984
RPI 698
#21.1
07/27/1993
RPI 1182
From the same holder
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