16.3
12/13/1983
RPI 686
The letters patent expired on 06/21/1994: 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: 12/13/1983. We update with every new RPI gazette, published weekly.
Applicants
C. W. (pessoa física)
Inventors
H. G. (pessoa física)
M. D. (pessoa física)
S. T. (pessoa física)
S. D. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
12/13/1983
RPI 686
#16.1
09/27/1983
RPI 675
#13.1
06/21/1983
RPI 661
#9.1
03/01/1983
RPI 645
#6.1
05/04/1982
RPI 602
#21.1
06/21/1994
RPI 1229
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.