20.7
05/31/1988
RPI 919
The patent was granted on 08/25/1987 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 05/31/1988. We update with every new RPI gazette, published weekly.
Applicants
VALDEMAR THOMSEN [BR]
Inventors
T. [. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
05/31/1988
RPI 919
#16.1
08/25/1987
RPI 879
#13.1
06/09/1987
RPI 868
#9.1
01/06/1987
RPI 846
#6.1
05/20/1986
RPI 813
#4.1
11/27/1984
RPI 736
#3.2
08/21/1984
RPI 722
#2.1
05/15/1984
RPI 708
#18.2
03/10/1992
RPI 1110
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.