Pedido de licença compulsória
#20.1
06/28/1988
RPI 923
The letters patent expired on 11/15/1994: 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: 06/28/1988. We update with every new RPI gazette, published weekly.
Applicants
HENRIQUE RODRIGUES CHAGAS [BR]
Inventors
C. [. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#20.1
06/28/1988
RPI 923
#16.1
01/26/1988
RPI 901
#13.1
09/29/1987
RPI 884
#9.1
06/09/1987
RPI 868
#6.1
09/30/1986
RPI 832
#6.1
12/24/1985
RPI 792
#4.1
04/30/1985
RPI 758
#3.1
07/17/1984
RPI 717
#2.1
02/01/1983
RPI 641
#21.1
11/15/1994
RPI 1250
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.