Pedido de licença compulsória
#20.1
11/24/1987
RPI 892
Application data
Number
PI8101844Type
Filing
Publication
The letters patent expired on 09/24/1996: 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: 11/24/1987. We update with every new RPI gazette, published weekly.
Applicants
I. C. (pessoa física)
US
Inventors
R. W. (pessoa física)
R. C. (pessoa física)
S. D. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#20.1
11/24/1987
RPI 892
#16.1
06/25/1985
RPI 766
#13.1
04/09/1985
RPI 755
#9.1
12/11/1984
RPI 738
#6.1
06/05/1984
RPI 711
#4.1
10/25/1983
RPI 679
#3.1
10/06/1981
RPI 572
#21.1
09/24/1996
RPI 1347
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.