Carta-patente expirada
#21.1
10/18/1988
RPI 939
The letters patent expired on 10/18/1988: 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: 10/18/1988. We update with every new RPI gazette, published weekly.
Applicants
Z. A. (pessoa física)
DE
Inventors
H. H. (pessoa física)
IPC Classification
No IPC classification.
Priority claims
DE
P 28 34 421.0 · 08/05/1978
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
10/18/1988
RPI 939
#11.1
01/10/1984
RPI 690
From the same holder
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