Publicação do pedido de patente
#3.1
10/03/1989
RPI 989
Application data
Number
PI8900534Type
Filing
Publication
The letters patent expired on 12/15/2009: 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: 10/03/1989. We update with every new RPI gazette, published weekly.
Applicants
Norton Company
US
Inventors
R. B. (pessoa física)
CA
R. F. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
10/03/1989
RPI 989
#2.1
03/21/1989
RPI 961
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C04B 35/10; C01B 7/02.
03/27/2018
RPI 2464
#21.1
Patente extinta em 03/02/2004
12/15/2009
RPI 2032
#16.1
01/30/1996
RPI 1313
#13.1
10/31/1995
RPI 1300
#15.11
07/18/1995
RPI 1285
#9.1
06/20/1995
RPI 1281
#6.1
10/25/1994
RPI 1247
#4.1
09/11/1990
RPI 1032
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.