Solicitação de exame técnico
#4.1
10/10/1989
RPI 990
Application data
Number
PI8505352Type
Filing
Publication
The patent was granted on 10/29/1991 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: 10/10/1989. We update with every new RPI gazette, published weekly.
Applicants
The Dow Chemical Company
US
Inventors
D. L. (pessoa física)
US
E. S. (pessoa física)
US
T. K. (pessoa física)
JP
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
10/10/1989
RPI 990
#3.1
06/02/1987
RPI 867
#2.1
01/14/1986
RPI 795
#18.2
06/04/1996
RPI 1331
#16.1
10/29/1991
RPI 1091
#13.1
06/25/1991
RPI 1073
#9.1
03/12/1991
RPI 1058
#6.1
08/21/1990
RPI 1029
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.