Concessão da patente
#16.1
03/29/1983
RPI 649
The letters patent expired on 07/27/1993: 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: 03/29/1983. We update with every new RPI gazette, published weekly.
Applicants
E. K. (pessoa física)
Inventors
E. K. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
03/29/1983
RPI 649
#13.1
01/11/1983
RPI 638
#9.1
09/08/1982
RPI 620
#6.1
10/27/1981
RPI 575
#21.1
07/27/1993
RPI 1182
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.