Concessão da patente
#16.1
09/25/1984
RPI 727
The letters patent expired on 05/16/1995: 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: 09/25/1984. We update with every new RPI gazette, published weekly.
Applicants
Ciquine - Companhia Petroquímica
BA, BR
Inventors
M. Y. (pessoa física)
W. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
09/25/1984
RPI 727
#13.1
05/15/1984
RPI 708
#9.1
01/31/1984
RPI 693
#15.11
09/13/1983
RPI 673
#6.1
08/23/1983
RPI 670
#4.1
05/25/1982
RPI 605
#4.2
12/29/1981
RPI 584
#21.1
05/16/1995
RPI 1276
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.