20.4
10/06/1987
RPI 885
Application data
Number
PI8206648Type
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: 10/06/1987. We update with every new RPI gazette, published weekly.
Applicants
Basf Farben + Fasern Aktiengesellschaft
DE
Inventors
D. [. (pessoa física)
D. [. (pessoa física)
G. [. (pessoa física)
IPC Classification
Priority claims
DE
P 31 08 073.1 · 03/04/1981
DE
PCT/82/00035 · 02/26/1982
Publications in the Brazilian Industrial Property Gazette (RPI).
10/06/1987
RPI 885
10/06/1987
RPI 885
#16.1
06/24/1986
RPI 818
#13.1
04/22/1986
RPI 809
#9.1
12/17/1985
RPI 791
#6.1
02/20/1985
RPI 748
#4.1
08/23/1983
RPI 670
#1.3
03/01/1983
RPI 645
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C09D 3/58; C09D 5/40; C25D 13/06; C09D 163/00.
03/27/2018
RPI 2464
#21.1
Patente extinta em 26/02/97
07/01/2008
RPI 1956
From the same holder
Same category
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