Cessão de direito de exploração
#22.1
06/04/1985
RPI 763
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: 06/04/1985. We update with every new RPI gazette, published weekly.
Applicants
SONY CORP [JP]
Inventors
T. [. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#22.1
06/04/1985
RPI 763
02/14/1984
RPI 695
#16.1
11/29/1983
RPI 684
#13.1
09/27/1983
RPI 675
#9.1
05/24/1983
RPI 657
12/14/1982
RPI 634
08/17/1982
RPI 617
#6.1
05/25/1982
RPI 605
#21.1
06/21/1994
RPI 1229
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.