Concessão da patente
#16.1
01/26/1982
RPI 588
The letters patent expired on 07/20/1993: 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: 01/26/1982. We update with every new RPI gazette, published weekly.
Applicants
E. L. (pessoa física)
Inventors
E. L. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
01/26/1982
RPI 588
#15.11
A classificação anterior era: E01F 9/04
08/16/2016
RPI 2380
#21.1
07/20/1993
RPI 1181
04/24/1990
RPI 1015
From the same holder
Same category
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