16.3
07/26/1983
RPI 666
The letters patent expired on 07/20/1993: 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: 07/26/1983. We update with every new RPI gazette, published weekly.
Applicants
STAUFFER CHEMICAL CO
Inventors
F. L. (pessoa física)
M. D. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
07/26/1983
RPI 666
#16.1
05/31/1983
RPI 658
#13.1
01/11/1983
RPI 638
#9.1
09/08/1982
RPI 620
#7.1
01/05/1982
RPI 585
#21.1
07/20/1993
RPI 1181
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.