Exigência - art. 36 da LPI
#6.1
08/16/1988
RPI 930
Application data
Number
PI8303541Type
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: 08/16/1988. We update with every new RPI gazette, published weekly.
Applicants
Minnesota Mining and Manufacturing Company
US
Inventors
P. O. (pessoa física)
US
IPC Classification
Priority claims
US
394.532 · 07/02/1982
Publications in the Brazilian Industrial Property Gazette (RPI).
#6.1
08/16/1988
RPI 930
09/22/1987
RPI 883
#4.1
06/10/1986
RPI 816
#3.1
02/14/1984
RPI 695
#2.1
08/16/1983
RPI 669
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C09D 3/78; C09J 7/02; C08F 2/48.
03/27/2018
RPI 2464
#21.1
Patente extinta em 01/07/98
07/01/2008
RPI 1956
#16.1
04/30/1991
RPI 1065
#13.1
01/15/1991
RPI 1050
#9.1
10/02/1990
RPI 1035
#6.1
04/03/1990
RPI 1012
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.