Solicitação de exame técnico
#4.1
02/21/1989
RPI 957
Application data
Number
PI8503847Type
Filing
Publication
The patent was granted on 04/28/1992 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: 02/21/1989. We update with every new RPI gazette, published weekly.
Applicants
The Dow Chemical Company
US
Inventors
E. W. (pessoa física)
US
F. B. (pessoa física)
US
R. J. (pessoa física)
US
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
02/21/1989
RPI 957
#3.1
03/24/1987
RPI 857
#2.1
10/22/1985
RPI 783
#18.2
05/28/1996
RPI 1330
#16.1
04/28/1992
RPI 1117
#13.1
11/12/1991
RPI 1093
#9.1
07/16/1991
RPI 1076
#6.1
01/29/1991
RPI 1052
#6.1
07/31/1990
RPI 1026
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.