16.3
08/30/1983
RPI 671
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: 08/30/1983. We update with every new RPI gazette, published weekly.
Applicants
T. H. (pessoa física)
Inventors
T. H. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
08/30/1983
RPI 671
#16.1
01/25/1983
RPI 640
#13.1
10/19/1982
RPI 626
08/10/1982
RPI 616
#12.1
02/09/1982
RPI 590
#21.1
07/27/1993
RPI 1182
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.