20.4
07/05/1988
RPI 924
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: 07/05/1988. We update with every new RPI gazette, published weekly.
Applicants
NORTORF MAQUINAS EQUIP LTD [BR]
Inventors
L. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
07/05/1988
RPI 924
06/28/1988
RPI 923
07/16/1985
RPI 769
#16.1
10/30/1984
RPI 732
#13.1
07/17/1984
RPI 717
#9.1
03/27/1984
RPI 701
#4.1
06/21/1983
RPI 661
#3.1
09/21/1982
RPI 622
#21.1
12/07/1993
RPI 1201
From the same holder
Same category
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