Publicação do pedido de patente
#3.1
03/28/1989
RPI 962
Application data
Number
PI8804428Type
Filing
Publication
The letters patent expired on 09/02/2008: 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: 03/28/1989. We update with every new RPI gazette, published weekly.
Applicants
Minnesota Mining and Manufacturing Company
US
Inventors
T. J. (pessoa física)
US
Priority claims
US
095,440 · 08/31/1987
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
03/28/1989
RPI 962
#2.1
01/31/1989
RPI 954
#15.11
Procedimento automático de reclassificação. A classificação IPC anterior era B01D 29/06.
03/27/2018
RPI 2464
#21.1
Patente extinta em 30/08/2003
09/02/2008
RPI 1965
#16.1
11/26/1996
RPI 1356
#13.1
06/25/1996
RPI 1334
#9.1
12/26/1995
RPI 1308
#6.1
05/02/1995
RPI 1274
#4.1
07/09/1991
RPI 1075
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.