Pedido de patente depositado
#2.1
07/04/1989
RPI 976
Application data
Number
PI8902172Type
Filing
Publication
The letters patent expired on 05/21/2013: 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
Minnesota Mining and Manufacturing Company
US
Inventors
G. W. (pessoa física)
US
M. D. (pessoa física)
SE
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
07/04/1989
RPI 976
#21.1
Patente extinta em 09/05/2009
05/21/2013
RPI 2211
#16.1
08/26/1997
RPI 1395
#9.1
11/12/1996
RPI 1354
#15.11
05/07/1996
RPI 1327
#6.1
02/21/1996
RPI 1316
#4.1
02/25/1992
RPI 1108
#3.1
01/02/1990
RPI 1000
From the same holder
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.