Concessão da patente
#16.1
05/25/1982
RPI 605
The letters patent expired on 12/31/2024: 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: 05/25/1982. We update with every new RPI gazette, published weekly.
Applicants
PIAZZA IND METALURG LTD
Inventors
P. E. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
05/25/1982
RPI 605
#21.1
PATENTE EXTINTA EM 01/06/1986
12/31/2024
RPI 2817
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.