11.7
07/04/1989
RPI 976
Application data
Number
PI8307740Type
Filing
Publication
The letters patent expired on 07/01/2008: 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: 07/04/1989. We update with every new RPI gazette, published weekly.
Applicants
The Dow Chemical Company
US
Inventors
B. N. (pessoa física)
US
D. N. (pessoa física)
US
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
07/04/1989
RPI 976
#11.2
05/23/1989
RPI 970
#6.1
11/16/1988
RPI 943
#4.1
06/30/1987
RPI 871
#1.3
06/04/1985
RPI 763
#21.1
Patente extinta em 27/06/98
07/01/2008
RPI 1956
#16.1
11/27/1990
RPI 1043
#13.1
07/24/1990
RPI 1025
#9.1
03/13/1990
RPI 1009
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.