Concessão da patente
#16.1
10/29/1986
RPI 836
The letters patent expired on 09/12/1995: 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: 10/29/1986. We update with every new RPI gazette, published weekly.
Applicants
The Standard Oil Company
US
Inventors
L. N. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
10/29/1986
RPI 836
#13.1
07/01/1986
RPI 819
#9.1
03/11/1986
RPI 803
#6.1
05/21/1985
RPI 761
#6.1
02/14/1984
RPI 695
#4.1
07/12/1983
RPI 664
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 121/32; C07F 3/00; C08F 120/44; C07C 253/00; C08F 120/00.
03/27/2018
RPI 2464
#21.1
09/12/1995
RPI 1293
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.