22.9
05/31/1983
RPI 658
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: 05/31/1983. We update with every new RPI gazette, published weekly.
Applicants
I. C. (pessoa física)
Inventors
Y. D. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
05/31/1983
RPI 658
#16.1
03/29/1983
RPI 649
#13.1
01/11/1983
RPI 638
#9.1
09/08/1982
RPI 620
04/06/1982
RPI 598
#6.1
01/12/1982
RPI 586
#21.1
07/20/1993
RPI 1181
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Same category
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