Cessão de direito de exploração
#22.1
04/22/1986
RPI 809
The letters patent expired on 11/17/1992: 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: 04/22/1986. We update with every new RPI gazette, published weekly.
Applicants
O. M. (pessoa física)
CE, BR
Inventors
E. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#22.1
04/22/1986
RPI 809
02/21/1984
RPI 696
#18.2
10/18/1983
RPI 678
#16.1
07/01/1980
RPI 506
#21.1
11/17/1992
RPI 1146
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.