20.4
08/22/1989
RPI 983
The letters patent expired on 12/07/1993: 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: 08/22/1989. We update with every new RPI gazette, published weekly.
Applicants
A. B. (pessoa física)
Inventors
B. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
08/22/1989
RPI 983
#16.1
02/26/1985
RPI 749
#13.1
10/02/1984
RPI 728
#15.11
09/04/1984
RPI 724
#9.1
06/12/1984
RPI 712
#6.1
01/10/1984
RPI 690
#15.11
A classificação anterior era: E05B 65/19
08/25/2015
RPI 2329
#21.1
12/07/1993
RPI 1201
From the same holder
Same category
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