Concessão da patente
#16.1
04/24/1984
RPI 705
The letters patent expired on 12/07/1993: 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: 04/24/1984. We update with every new RPI gazette, published weekly.
Applicants
Duratex S.A.
SP, BR
Inventors
G. P. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
04/24/1984
RPI 705
#13.1
12/20/1983
RPI 687
#9.1
08/30/1983
RPI 671
#4.1
07/06/1982
RPI 611
#3.1
04/13/1982
RPI 599
#21.1
12/07/1993
RPI 1201
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.