20.7
09/05/1989
RPI 985
The letters patent expired on 05/24/1994: 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: 09/05/1989. We update with every new RPI gazette, published weekly.
Applicants
M. K. (pessoa física)
Inventors
B. H. (pessoa física)
S. J. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
09/05/1989
RPI 985
09/20/1988
RPI 935
#16.1
05/31/1983
RPI 658
#13.1
01/25/1983
RPI 640
#9.1
09/21/1982
RPI 622
#6.1
03/09/1982
RPI 594
#21.1
05/24/1994
RPI 1225
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.