Concessão da patente
#16.1
08/25/1987
RPI 879
The letters patent expired on 12/07/1993: 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: 08/25/1987. We update with every new RPI gazette, published weekly.
Applicants
IVAN OCHSENHOFER [BR]
Inventors
O. [. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
08/25/1987
RPI 879
#13.1
06/23/1987
RPI 870
#9.1
02/17/1987
RPI 852
#4.1
05/13/1986
RPI 812
#3.1
12/26/1984
RPI 740
#2.1
06/28/1983
RPI 662
#21.1
12/07/1993
RPI 1201
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.