320
07/16/1985
RPI 769
The letters patent expired on 05/03/1994: 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: 07/16/1985. We update with every new RPI gazette, published weekly.
Applicants
NORTON CO
Inventors
P. K. (pessoa física)
S. R. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
07/16/1985
RPI 769
#15.11
07/02/1985
RPI 767
05/14/1985
RPI 760
01/08/1985
RPI 742
#17.1
06/26/1984
RPI 714
#16.1
04/26/1983
RPI 653
#13.1
02/01/1983
RPI 641
#9.1
09/28/1982
RPI 623
#6.1
04/06/1982
RPI 598
03/23/1982
RPI 596
#6.1
12/01/1981
RPI 580
#21.1
05/03/1994
RPI 1222
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.