Concessão da patente
#16.1
01/31/1984
RPI 693
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: 01/31/1984. We update with every new RPI gazette, published weekly.
Applicants
S. D. (pessoa física)
Inventors
E. B. (pessoa física)
IPC Classification
No IPC classification.
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
01/31/1984
RPI 693
#13.1
12/27/1983
RPI 688
10/25/1983
RPI 679
01/11/1983
RPI 638
#12.2
08/03/1982
RPI 615
#9.2
04/13/1982
RPI 599
#21.1
12/07/1993
RPI 1201
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.