20.4
03/10/1987
RPI 855
The letters patent expired on 06/21/1994: 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: 03/10/1987. We update with every new RPI gazette, published weekly.
Applicants
Lucas Industries Limited.
GB
Inventors
E. M. (pessoa física)
S. J. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
03/10/1987
RPI 855
#16.1
10/30/1984
RPI 732
#13.1
08/21/1984
RPI 722
#9.1
04/24/1984
RPI 705
#6.1
11/08/1983
RPI 681
#4.1
03/22/1983
RPI 648
#21.1
06/21/1994
RPI 1229
From the same holder
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.