22.0
08/31/1982
RPI 619
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: 08/31/1982. We update with every new RPI gazette, published weekly.
Applicants
H. K. (pessoa física)
K. M. (pessoa física)
Inventors
H. K. (pessoa física)
K. M. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
08/31/1982
RPI 619
#16.1
06/29/1982
RPI 610
#13.1
11/03/1981
RPI 576
#21.1
07/20/1993
RPI 1181
Same category
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